11
10
2824
-
https://www.iowaheritage.org/files/original/7c6fd899fef6d2479b39a27191da3f85.jpg
8069adf61f42daf26b06bd59d23ea206
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Width
147
Height
120
Bit Depth
8
Channels
1
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Digital Iowa Geological Resources (DIGS)
Description
An account of the resource
Included in this collection are annual surveys from the late 19th century
Contributor
An entity responsible for making contributions to the resource
University of Iowa Libraries, Geoscience Library
Remote Item
Item imported from a remote repository
Source URL
Source URL description ...
<a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Contributor
An entity responsible for making contributions to the resource
Contact the University of Iowa Libraries Map Collection: http://www.lib.uiowa.edu/maps/contact.html
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
t088n;
r040w
Creator
An entity primarily responsible for making the resource
Anderson, A.; Marsh, J.; Williams, J.;
Date
A point or period of time associated with an event in the lifecycle of the resource
1849; 1851; 1853;
Description
An account of the resource
40 chains to an inch
Identifier
An unambiguous reference to the resource within a given context
Reel02_0708_plat.tif
https://digital.lib.uiowa.edu/
Publisher
An entity responsible for making the resource available
United States. Surveyor General
University of Iowa. Libraries. Map Collection
Relation
A related resource
GLO Maps
United States. Surveyor General. [Survey of Iowa, descriptive summary volumes], ca. 1837-1852. Microfilm. Des Moines, Iowa: State of Iowa, Dept. of General Services, Records Management Division; Cedar Rapids, Iowa: Heritage Microfilm [distributor], 1981
Rights
Information about rights held in and over the resource
Educational use only, no other permissions given. U.S. and international copyright laws may protect this digital object. Commercial use or distribution of the object is not permitted without prior permission of the copyright holder.
Master TIFF image created at 600 ppi, bitonal; display image is 600 ppi TIFF.
Subject
The topic of the resource
United States
Iowa
Ida County
Title
A name given to the resource
Iowa land survey map of t088n, r040w
Type
The nature or genre of the resource
Still image
Maps; Land surveys; Plats (Maps)
tiff
-
https://www.iowaheritage.org/files/original/236da4748645935d2e4954b986075758.jpg
34988bf69cfc2ef4bee4a69801bf0f7d
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Digital Iowa Geological Resources (DIGS)
Description
An account of the resource
Included in this collection are annual surveys from the late 19th century
Contributor
An entity responsible for making contributions to the resource
University of Iowa Libraries, Geoscience Library
Remote Item
Item imported from a remote repository
Source URL
Source URL description ...
<a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Contributor
An entity responsible for making contributions to the resource
Contact the University of Iowa Libraries Map Collection: http://www.lib.uiowa.edu/maps/contact.html
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
t080n;
r037w
Creator
An entity primarily responsible for making the resource
Anderson, A.; McDonald, C.;
Date
A point or period of time associated with an event in the lifecycle of the resource
1852; 1853;
Description
An account of the resource
40 chains to and inch
Identifier
An unambiguous reference to the resource within a given context
Reel02_0594_plat.tif
https://digital.lib.uiowa.edu/
Publisher
An entity responsible for making the resource available
United States. Surveyor General
University of Iowa. Libraries. Map Collection
Relation
A related resource
GLO Maps
United States. Surveyor General. [Survey of Iowa, descriptive summary volumes], ca. 1837-1852. Microfilm. Des Moines, Iowa: State of Iowa, Dept. of General Services, Records Management Division; Cedar Rapids, Iowa: Heritage Microfilm [distributor], 1981
Rights
Information about rights held in and over the resource
Educational use only, no other permissions given. U.S. and international copyright laws may protect this digital object. Commercial use or distribution of the object is not permitted without prior permission of the copyright holder.
Master TIFF image created at 600 ppi, bitonal; display image is 600 ppi TIFF.
Subject
The topic of the resource
United States
Iowa
Shelby County
Title
A name given to the resource
Iowa land survey map of t080n, r037w
Type
The nature or genre of the resource
Still image
Maps; Land surveys; Plats (Maps)
tiff
-
https://www.iowaheritage.org/files/original/3cbb7ddb0d8f99d831d05b9ec47e88c4.jpg
e2cb774700784570eef22f5953f96736
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Digital Iowa Geological Resources (DIGS)
Description
An account of the resource
Included in this collection are annual surveys from the late 19th century
Contributor
An entity responsible for making contributions to the resource
University of Iowa Libraries, Geoscience Library
Remote Item
Item imported from a remote repository
Source URL
Source URL description ...
<a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Contributor
An entity responsible for making contributions to the resource
Contact the University of Iowa Libraries Map Collection: http://www.lib.uiowa.edu/maps/contact.html
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
t080n;
r038w
Creator
An entity primarily responsible for making the resource
Anderson, A.; McDonald, C.;
Date
A point or period of time associated with an event in the lifecycle of the resource
1852; 1853;
Description
An account of the resource
40 chains to and inch
Identifier
An unambiguous reference to the resource within a given context
Reel02_0629_plat.tif
https://digital.lib.uiowa.edu/
Publisher
An entity responsible for making the resource available
United States. Surveyor General
University of Iowa. Libraries. Map Collection
Relation
A related resource
GLO Maps
United States. Surveyor General. [Survey of Iowa, descriptive summary volumes], ca. 1837-1852. Microfilm. Des Moines, Iowa: State of Iowa, Dept. of General Services, Records Management Division; Cedar Rapids, Iowa: Heritage Microfilm [distributor], 1981
Rights
Information about rights held in and over the resource
Educational use only, no other permissions given. U.S. and international copyright laws may protect this digital object. Commercial use or distribution of the object is not permitted without prior permission of the copyright holder.
Master TIFF image created at 600 ppi, bitonal; display image is 600 ppi TIFF.
Subject
The topic of the resource
United States
Iowa
Shelby County
Title
A name given to the resource
Iowa land survey map of t080n, r038w
Type
The nature or genre of the resource
Still image
Maps; Land surveys; Plats (Maps)
tiff
-
https://www.iowaheritage.org/files/original/2abf54c9e94de1b0af353fa7a6b0dbce.jpg
61592bba2ebb26d0eeda53c9928bca25
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Digital Iowa Geological Resources (DIGS)
Description
An account of the resource
Included in this collection are annual surveys from the late 19th century
Contributor
An entity responsible for making contributions to the resource
University of Iowa Libraries, Geoscience Library
Remote Item
Item imported from a remote repository
Source URL
Source URL description ...
<a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Contributor
An entity responsible for making contributions to the resource
Contact the University of Iowa Libraries Map Collection: http://www.lib.uiowa.edu/maps/contact.html
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
t081n;
r038w
Creator
An entity primarily responsible for making the resource
Anderson, A.; McDonald, C.;
Date
A point or period of time associated with an event in the lifecycle of the resource
1852; 1853;
Description
An account of the resource
40 chains to and inch
Identifier
An unambiguous reference to the resource within a given context
Reel02_0630_plat.tif
https://digital.lib.uiowa.edu/
Publisher
An entity responsible for making the resource available
United States. Surveyor General
University of Iowa. Libraries. Map Collection
Relation
A related resource
GLO Maps
United States. Surveyor General. [Survey of Iowa, descriptive summary volumes], ca. 1837-1852. Microfilm. Des Moines, Iowa: State of Iowa, Dept. of General Services, Records Management Division; Cedar Rapids, Iowa: Heritage Microfilm [distributor], 1981
Rights
Information about rights held in and over the resource
Educational use only, no other permissions given. U.S. and international copyright laws may protect this digital object. Commercial use or distribution of the object is not permitted without prior permission of the copyright holder.
Master TIFF image created at 600 ppi, bitonal; display image is 600 ppi TIFF.
Subject
The topic of the resource
United States
Iowa
Shelby County
Title
A name given to the resource
Iowa land survey map of t081n, r038w
Type
The nature or genre of the resource
Still image
Maps; Land surveys; Plats (Maps)
tiff
-
https://www.iowaheritage.org/files/original/e9bde91c9060edc557e71f96894c4ec1.jpg
967dc40700c2dd7406a23df80b2513d6
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Digital Iowa Geological Resources (DIGS)
Description
An account of the resource
Included in this collection are annual surveys from the late 19th century
Contributor
An entity responsible for making contributions to the resource
University of Iowa Libraries, Geoscience Library
Remote Item
Item imported from a remote repository
Source URL
Source URL description ...
<a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Contributor
An entity responsible for making contributions to the resource
Contact the University of Iowa Libraries Map Collection: http://www.lib.uiowa.edu/maps/contact.html
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
t080n;
r039w;
Creator
An entity primarily responsible for making the resource
Anderson, A.; McDonald, C.;
Date
A point or period of time associated with an event in the lifecycle of the resource
1851; 1852; 1854;
Description
An account of the resource
40 chains to an inch
Identifier
An unambiguous reference to the resource within a given context
Reel02_0664_plat.tif
https://digital.lib.uiowa.edu/
Publisher
An entity responsible for making the resource available
United States. Surveyor General
University of Iowa. Libraries. Map Collection
Relation
A related resource
GLO Maps
United States. Surveyor General. [Survey of Iowa, descriptive summary volumes], ca. 1837-1852. Microfilm. Des Moines, Iowa: State of Iowa, Dept. of General Services, Records Management Division; Cedar Rapids, Iowa: Heritage Microfilm [distributor], 1981
Rights
Information about rights held in and over the resource
Educational use only, no other permissions given. U.S. and international copyright laws may protect this digital object. Commercial use or distribution of the object is not permitted without prior permission of the copyright holder.
Master TIFF image created at 600 ppi, bitonal; display image is 600 ppi TIFF.
Subject
The topic of the resource
United States
Iowa
Shelby County
Title
A name given to the resource
Iowa land survey map of t080n, r039w
Type
The nature or genre of the resource
Still image
Maps; Land surveys; Plats (Maps)
tiff
-
https://www.iowaheritage.org/files/original/409dd0e29bb410c497af545ffcf36ca4.jpg
11d85d4987c04942417154bf4b4c2f8c
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Digital Iowa Geological Resources (DIGS)
Description
An account of the resource
Included in this collection are annual surveys from the late 19th century
Contributor
An entity responsible for making contributions to the resource
University of Iowa Libraries, Geoscience Library
Remote Item
Item imported from a remote repository
Source URL
Source URL description ...
<a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Contributor
An entity responsible for making contributions to the resource
Contact the University of Iowa Libraries Map Collection: http://www.lib.uiowa.edu/maps/contact.html
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
t081n;
r039w;
Creator
An entity primarily responsible for making the resource
Anderson, A.; McDonald, C.;
Date
A point or period of time associated with an event in the lifecycle of the resource
1851; 1852; 1854;
Description
An account of the resource
40 chains to an inch
Identifier
An unambiguous reference to the resource within a given context
Reel02_0665_plat.tif
https://digital.lib.uiowa.edu/
Publisher
An entity responsible for making the resource available
United States. Surveyor General
University of Iowa. Libraries. Map Collection
Relation
A related resource
GLO Maps
United States. Surveyor General. [Survey of Iowa, descriptive summary volumes], ca. 1837-1852. Microfilm. Des Moines, Iowa: State of Iowa, Dept. of General Services, Records Management Division; Cedar Rapids, Iowa: Heritage Microfilm [distributor], 1981
Rights
Information about rights held in and over the resource
Educational use only, no other permissions given. U.S. and international copyright laws may protect this digital object. Commercial use or distribution of the object is not permitted without prior permission of the copyright holder.
Master TIFF image created at 600 ppi, bitonal; display image is 600 ppi TIFF.
Subject
The topic of the resource
United States
Iowa
Shelby County
Title
A name given to the resource
Iowa land survey map of t081n, r039w
Type
The nature or genre of the resource
Still image
Maps; Land surveys; Plats (Maps)
tiff
-
https://www.iowaheritage.org/files/original/e004dc3dbf90c821e3ef6c08aab02aea.jpg
27b098f79173ac9790defe8a3efecb23
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Digital Iowa Geological Resources (DIGS)
Description
An account of the resource
Included in this collection are annual surveys from the late 19th century
Contributor
An entity responsible for making contributions to the resource
University of Iowa Libraries, Geoscience Library
Remote Item
Item imported from a remote repository
Source URL
Source URL description ...
<a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Contributor
An entity responsible for making contributions to the resource
Contact the University of Iowa Libraries Map Collection: http://www.lib.uiowa.edu/maps/contact.html
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
t082n;
r039w;
Creator
An entity primarily responsible for making the resource
Anderson, A.; McDonald, C.;
Date
A point or period of time associated with an event in the lifecycle of the resource
1851; 1852; 1854;
Description
An account of the resource
40 chains to an inch
Identifier
An unambiguous reference to the resource within a given context
Reel02_0666_plat.tif
https://digital.lib.uiowa.edu/
Publisher
An entity responsible for making the resource available
United States. Surveyor General
University of Iowa. Libraries. Map Collection
Relation
A related resource
GLO Maps
United States. Surveyor General. [Survey of Iowa, descriptive summary volumes], ca. 1837-1852. Microfilm. Des Moines, Iowa: State of Iowa, Dept. of General Services, Records Management Division; Cedar Rapids, Iowa: Heritage Microfilm [distributor], 1981
Rights
Information about rights held in and over the resource
Educational use only, no other permissions given. U.S. and international copyright laws may protect this digital object. Commercial use or distribution of the object is not permitted without prior permission of the copyright holder.
Master TIFF image created at 600 ppi, bitonal; display image is 600 ppi TIFF.
Subject
The topic of the resource
United States
Iowa
Crawford County
Title
A name given to the resource
Iowa land survey map of t082n, r039w
Type
The nature or genre of the resource
Still image
Maps; Land surveys; Plats (Maps)
tiff
-
https://www.iowaheritage.org/files/original/2b47cdf49855fbfa191458e616c4ae12.jpg
93895499a22a2136c12e9d5db9d7085a
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Digital Iowa Geological Resources (DIGS)
Description
An account of the resource
Included in this collection are annual surveys from the late 19th century
Contributor
An entity responsible for making contributions to the resource
University of Iowa Libraries, Geoscience Library
Remote Item
Item imported from a remote repository
Source URL
Source URL description ...
<a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Contributor
An entity responsible for making contributions to the resource
Contact the University of Iowa Libraries Map Collection: http://www.lib.uiowa.edu/maps/contact.html
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
t080n;
r035w;
Creator
An entity primarily responsible for making the resource
Anderson, A.; Perry, A.;
Date
A point or period of time associated with an event in the lifecycle of the resource
1852;
Description
An account of the resource
40 chains to an inch
Identifier
An unambiguous reference to the resource within a given context
Reel02_0524_plat.tif
https://digital.lib.uiowa.edu/
Publisher
An entity responsible for making the resource available
United States. Surveyor General
University of Iowa. Libraries. Map Collection
Relation
A related resource
GLO Maps
United States. Surveyor General. [Survey of Iowa, descriptive summary volumes], ca. 1837-1852. Microfilm. Des Moines, Iowa: State of Iowa, Dept. of General Services, Records Management Division; Cedar Rapids, Iowa: Heritage Microfilm [distributor], 1981
Rights
Information about rights held in and over the resource
Educational use only, no other permissions given. U.S. and international copyright laws may protect this digital object. Commercial use or distribution of the object is not permitted without prior permission of the copyright holder.
Master TIFF image created at 600 ppi, bitonal; display image is 600 ppi TIFF.
Subject
The topic of the resource
United States
Iowa
Audubon County
Title
A name given to the resource
Iowa land survey map of t080n, r035w
Type
The nature or genre of the resource
Still image
Maps; Land surveys; Plats (Maps)
tiff
-
https://www.iowaheritage.org/files/original/7cdc11cccb0752c7d1941d773e96b345.jpg
e66865f68233ab43157104f138c6914d
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Digital Iowa Geological Resources (DIGS)
Description
An account of the resource
Included in this collection are annual surveys from the late 19th century
Contributor
An entity responsible for making contributions to the resource
University of Iowa Libraries, Geoscience Library
Remote Item
Item imported from a remote repository
Source URL
Source URL description ...
<a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Contributor
An entity responsible for making contributions to the resource
Contact the University of Iowa Libraries Map Collection: http://www.lib.uiowa.edu/maps/contact.html
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
t098n;
r041w
Creator
An entity primarily responsible for making the resource
Anderson, A.; Rierdon, J.;
Date
A point or period of time associated with an event in the lifecycle of the resource
1855; 1857;
Description
An account of the resource
40 chains to an inch
Identifier
An unambiguous reference to the resource within a given context
Reel02_0754_plat.tif
https://digital.lib.uiowa.edu/
Publisher
An entity responsible for making the resource available
United States. Surveyor General
University of Iowa. Libraries. Map Collection
Relation
A related resource
GLO Maps
United States. Surveyor General. [Survey of Iowa, descriptive summary volumes], ca. 1837-1852. Microfilm. Des Moines, Iowa: State of Iowa, Dept. of General Services, Records Management Division; Cedar Rapids, Iowa: Heritage Microfilm [distributor], 1981
Rights
Information about rights held in and over the resource
Educational use only, no other permissions given. U.S. and international copyright laws may protect this digital object. Commercial use or distribution of the object is not permitted without prior permission of the copyright holder.
Master TIFF image created at 600 ppi, bitonal; display image is 600 ppi TIFF.
Subject
The topic of the resource
United States
Iowa
Osceola County
Title
A name given to the resource
Iowa land survey map of t098n, r041w
Type
The nature or genre of the resource
Still image
Maps; Land surveys; Plats (Maps)
tiff
-
https://www.iowaheritage.org/files/original/2c07a10894f42c6fdf7e148c578ef25c.jpg
dccfc2821f882a5e7c57c7551cd5ba17
Omeka Image File
The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files.
Width
151
Height
120
Bit Depth
8
Channels
1
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Digital Iowa Geological Resources (DIGS)
Description
An account of the resource
Included in this collection are annual surveys from the late 19th century
Contributor
An entity responsible for making contributions to the resource
University of Iowa Libraries, Geoscience Library
Remote Item
Item imported from a remote repository
Source URL
Source URL description ...
<a href="https://digital.lib.uiowa.edu/" target="_blank">View this item in its source respository</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Contributor
An entity responsible for making contributions to the resource
Contact the University of Iowa Libraries Map Collection: http://www.lib.uiowa.edu/maps/contact.html
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
t098n;
r043w;
Creator
An entity primarily responsible for making the resource
Anderson, A.; Rierdon, J.;
Date
A point or period of time associated with an event in the lifecycle of the resource
1855; 1857;
Description
An account of the resource
40 chains to an inch
Identifier
An unambiguous reference to the resource within a given context
Reel03_0075_plat.tif
https://digital.lib.uiowa.edu/
Publisher
An entity responsible for making the resource available
United States. Surveyor General
University of Iowa. Libraries. Map Collection
Relation
A related resource
GLO Maps
United States. Surveyor General. [Survey of Iowa, descriptive summary volumes], ca. 1837-1852. Microfilm. Des Moines, Iowa: State of Iowa, Dept. of General Services, Records Management Division; Cedar Rapids, Iowa: Heritage Microfilm [distributor], 1981
Rights
Information about rights held in and over the resource
Educational use only, no other permissions given. U.S. and international copyright laws may protect this digital object. Commercial use or distribution of the object is not permitted without prior permission of the copyright holder.
Master TIFF image created at 600 ppi, bitonal; display image is 600 ppi TIFF.
Subject
The topic of the resource
United States
Iowa
Lyon County
Title
A name given to the resource
Iowa land survey map of t098n, r043w
Type
The nature or genre of the resource
Still image
Maps; Land surveys; Plats (Maps)
tiff