. Bulletin. Natural history; Natural history. Diseases of Grain Crops. 1922-1926 37. Figs. 30-33. Sovkces of stem bust data for oats The black areas on these maps show the regions from which the data dis- cussed in the text were taljen in 1922, 1924. 1925. and 1926. No infection was found in 1923. though more than acres were examined. The fields exam- ined in the other tour years contained a total of acres. (See page 36.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these i
. Bulletin. Natural history; Natural history. Diseases of Grain Crops. 1922-1926 37. Figs. 30-33. Sovkces of stem bust data for oats The black areas on these maps show the regions from which the data dis- cussed in the text were taljen in 1922, 1924. 1925. and 1926. No infection was found in 1923. though more than acres were examined. The fields exam- ined in the other tour years contained a total of acres. (See page 36.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
