Data chart <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany">Botany</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany+in+Iowa">Botany in Iowa</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Plant+ecology">Plant ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+ecology">Prairie ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+plants">Prairie plants</a> Data reflecting quantity of plant material above and below ground in tons per acre, dry weight Hayden, Ada, 1884-1950 RS 13/5/55 Iowa State University Library Special Collections: http://www.add.lib.iastate.edu/spcl/index.html 1950 2012-07 U.S. and international copyright laws protect this digital image. Commercial use or distribution of the image is not permitted without prior permission of the copyright holder. For permission to use the digital image, please contact Iowa State University Library Special Collections at archives@iastate.edu For reproductions see: http://www.add.lib.iastate.edu/spcl/services/photfees.html Ada Hayden Papers, 1864-[ongoing]; http://www.add.lib.iastate.edu/spcl/arch/rgrp/13-5-55.html Lantern slide; 10.2x8.3 cm Image 13.5.55.LS.96 https://digitalcollections.lib.iastate.edu/ Original Forest Cover of Iowa Map <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany">Botany</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany+in+Iowa">Botany in Iowa</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Plant+ecology">Plant ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+ecology">Prairie ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+plants">Prairie plants</a> Original Forest Cover Map, Iowa State Planning Board Hayden, Ada, 1884-1950 RS 13/5/55 Iowa State University Library Special Collections: http://www.add.lib.iastate.edu/spcl/index.html 1933 2012-07 U.S. and international copyright laws protect this digital image. Commercial use or distribution of the image is not permitted without prior permission of the copyright holder. For permission to use the digital image, please contact Iowa State University Library Special Collections at archives@iastate.edu For reproductions see: http://www.add.lib.iastate.edu/spcl/services/photfees.html Ada Hayden Papers, 1864-[ongoing]; http://www.add.lib.iastate.edu/spcl/arch/rgrp/13-5-55.html Lantern slide; 10.2x8.3 cm Image 13.5.55.LS.95 https://digitalcollections.lib.iastate.edu/ Plant <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany">Botany</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany+in+Iowa">Botany in Iowa</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Plant+ecology">Plant ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+ecology">Prairie ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+plants">Prairie plants</a> Plant specimen (black and white), identified as number 1469 Hayden, Ada, 1884-1950 RS 13/5/55 Iowa State University Library Special Collections: http://www.add.lib.iastate.edu/spcl/index.html Undated 2012-07 U.S. and international copyright laws protect this digital image. Commercial use or distribution of the image is not permitted without prior permission of the copyright holder. For permission to use the digital image, please contact Iowa State University Library Special Collections at archives@iastate.edu For reproductions see: http://www.add.lib.iastate.edu/spcl/services/photfees.html Ada Hayden Papers, 1864-[ongoing]; http://www.add.lib.iastate.edu/spcl/arch/rgrp/13-5-55.html Lantern slide; 10.2x8.3 cm Image 13.5.55.LS.94 https://digitalcollections.lib.iastate.edu/ Dicentra cucullaria (Dutchman's breeches) <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany">Botany</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany+in+Iowa">Botany in Iowa</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Plant+ecology">Plant ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+ecology">Prairie ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+plants">Prairie plants</a> Dicentra cucullaria (Dutchman's breeches), in situ (black and white) Hayden, Ada, 1884-1950 RS 13/5/55 Iowa State University Library Special Collections: http://www.add.lib.iastate.edu/spcl/index.html Undated 2012-07 U.S. and international copyright laws protect this digital image. Commercial use or distribution of the image is not permitted without prior permission of the copyright holder. For permission to use the digital image, please contact Iowa State University Library Special Collections at archives@iastate.edu For reproductions see: http://www.add.lib.iastate.edu/spcl/services/photfees.html Ada Hayden Papers, 1864-[ongoing]; http://www.add.lib.iastate.edu/spcl/arch/rgrp/13-5-55.html Lantern slide; 10.2x8.3 cm Image 13.5.55.LS.93 https://digitalcollections.lib.iastate.edu/ Erigeron strigosus (Daisy) <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany">Botany</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany+in+Iowa">Botany in Iowa</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Plant+ecology">Plant ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+ecology">Prairie ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+plants">Prairie plants</a> Erigeron strigosus (Daisy), in situ (Black and white) Hayden, Ada, 1884-1950 RS 13/5/55 Iowa State University Library Special Collections: http://www.add.lib.iastate.edu/spcl/index.html Undated 2012-07 U.S. and international copyright laws protect this digital image. Commercial use or distribution of the image is not permitted without prior permission of the copyright holder. For permission to use the digital image, please contact Iowa State University Library Special Collections at archives@iastate.edu For reproductions see: http://www.add.lib.iastate.edu/spcl/services/photfees.html Ada Hayden Papers, 1864-[ongoing]; http://www.add.lib.iastate.edu/spcl/arch/rgrp/13-5-55.html Lantern slide; 10.2x8.3 cm Image 13.5.55.LS.92 https://digitalcollections.lib.iastate.edu/ Plant <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany">Botany</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany+in+Iowa">Botany in Iowa</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Plant+ecology">Plant ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+ecology">Prairie ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+plants">Prairie plants</a> Plant, in situ (black and white) Hayden, Ada, 1884-1950 RS 13/5/55 Iowa State University Library Special Collections: http://www.add.lib.iastate.edu/spcl/index.html Undated 2012-07 U.S. and international copyright laws protect this digital image. Commercial use or distribution of the image is not permitted without prior permission of the copyright holder. For permission to use the digital image, please contact Iowa State University Library Special Collections at archives@iastate.edu For reproductions see: http://www.add.lib.iastate.edu/spcl/services/photfees.html Ada Hayden Papers, 1864-[ongoing]; http://www.add.lib.iastate.edu/spcl/arch/rgrp/13-5-55.html Lantern slide; 10.2x8.3 cm Image 13.5.55.LS.91 https://digitalcollections.lib.iastate.edu/ Convolvulus arvensis (Morning glory) <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany">Botany</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany+in+Iowa">Botany in Iowa</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Plant+ecology">Plant ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+ecology">Prairie ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+plants">Prairie plants</a> Convolvulus arvensis (Morning glory), in situ (black and white) Hayden, Ada, 1884-1950 RS 13/5/55 Iowa State University Library Special Collections: http://www.add.lib.iastate.edu/spcl/index.html Undated 2012-07 U.S. and international copyright laws protect this digital image. Commercial use or distribution of the image is not permitted without prior permission of the copyright holder. For permission to use the digital image, please contact Iowa State University Library Special Collections at archives@iastate.edu For reproductions see: http://www.add.lib.iastate.edu/spcl/services/photfees.html Ada Hayden Papers, 1864-[ongoing]; http://www.add.lib.iastate.edu/spcl/arch/rgrp/13-5-55.html Lantern slide; 10.2x8.3 cm Image 13.5.55.LS.90 https://digitalcollections.lib.iastate.edu/ Plant <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany">Botany</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany+in+Iowa">Botany in Iowa</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Plant+ecology">Plant ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+ecology">Prairie ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+plants">Prairie plants</a> Plant specimen (black and white), identified as number 1321 Hayden, Ada, 1884-1950 RS 13/5/55 Iowa State University Library Special Collections: http://www.add.lib.iastate.edu/spcl/index.html Undated 2012-07 U.S. and international copyright laws protect this digital image. Commercial use or distribution of the image is not permitted without prior permission of the copyright holder. For permission to use the digital image, please contact Iowa State University Library Special Collections at archives@iastate.edu For reproductions see: http://www.add.lib.iastate.edu/spcl/services/photfees.html Ada Hayden Papers, 1864-[ongoing]; http://www.add.lib.iastate.edu/spcl/arch/rgrp/13-5-55.html Lantern slide; 10.2x8.3 cm Image 13.5.55.LS.89 https://digitalcollections.lib.iastate.edu/ Plant <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany">Botany</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany+in+Iowa">Botany in Iowa</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Plant+ecology">Plant ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+ecology">Prairie ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+plants">Prairie plants</a> Plant, in situ (black and white) Hayden, Ada, 1884-1950 RS 13/5/55 Iowa State University Library Special Collections: http://www.add.lib.iastate.edu/spcl/index.html Undated 2012-07 U.S. and international copyright laws protect this digital image. Commercial use or distribution of the image is not permitted without prior permission of the copyright holder. For permission to use the digital image, please contact Iowa State University Library Special Collections at archives@iastate.edu For reproductions see: http://www.add.lib.iastate.edu/spcl/services/photfees.html Ada Hayden Papers, 1864-[ongoing]; http://www.add.lib.iastate.edu/spcl/arch/rgrp/13-5-55.html Lantern slide; 10.2x8.3 cm Image 13.5.55.LS.88 https://digitalcollections.lib.iastate.edu/ Plant <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany">Botany</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Botany+in+Iowa">Botany in Iowa</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Plant+ecology">Plant ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+ecology">Prairie ecology</a> <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=49&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=Prairie+plants">Prairie plants</a> Plant, in situ (black and white) Hayden, Ada, 1884-1950 RS 13/5/55 Iowa State University Library Special Collections: http://www.add.lib.iastate.edu/spcl/index.html Undated 2012-07 U.S. and international copyright laws protect this digital image. Commercial use or distribution of the image is not permitted without prior permission of the copyright holder. For permission to use the digital image, please contact Iowa State University Library Special Collections at archives@iastate.edu For reproductions see: http://www.add.lib.iastate.edu/spcl/services/photfees.html Ada Hayden Papers, 1864-[ongoing]; http://www.add.lib.iastate.edu/spcl/arch/rgrp/13-5-55.html Lantern slide; 10.2x8.3 cm Image 13.5.55.LS.87 https://digitalcollections.lib.iastate.edu/