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Some Of The Causes And Results Of Polygamy Among The Pinnipedia, C. C. Nutting
Some Of The Causes And Results Of Polygamy Among The Pinnipedia, C. C. Nutting
Proceedings of the Iowa Academy of Science
Several years ago the writer was much struck by the great sexual differences met with among the Gallinae, and had noted the fact that there was a relation between sexual disparity in size and polygamy.
Corn Smut, [L. H. Pammel]
Corn Smut, [L. H. Pammel]
Proceedings of the Iowa Academy of Science
It is the generally accepted opinion among botanists that corn smut (Ustilago zeae-mays) enters the tissues of its host during the early stages of corn, shortly after germination. These opinions are based on the careful experiments conducted by Dr. Julius Kuehn, a careful German investigator. Last spring some experiments were started on the College Farm with the view of preventing this troublesome disease. It was expected, of course, that the results at the close of the season would show a decided advantage in the treated corn, but to my surprise the results were entirely negative.