W. A. KELLERMAN. SORGHUM SMUT IN ADAMS COUNTY.—A small field of Sorghum near Mineral Springs Station, Adams County, Ohio, was observed last November to be badly infected with the grain smut of Sorghum, known to botanists as ustilago sorghi, or perhaps more correctly designated (according to G. P. Clinton) as Cintractia sorghi-vulgaris. A careful inspection of the harvested stalks, still piled in the field, showed that fully twenty per cent. of the panicles or heads were infected. When there is infection by this smut, usually every grain in the panicle is smutted according to repeated observations in various localities. The field in question was very thickly planted to sorghum, the crop evidently being intended for stock feed. The only other locality reported in Ohio for this smut, so far as at present recalled, is Columbus, where however it has occurred only upon artificial infection. Broom corn also was here successfully infected. Sorghum is often cultivated, but not in large quantities in Ohio; a large acreage of broom corn is however annually planted. Request is hereby made for reports in case this smut is noticed in other localities in our State. The Head-smut of Sorghum, Ustilago reiliana, should also be reported if observed. NOTES ON SOME RUSTS.—M. A. Carleton, of the United States Department of Agriculture, has published some observations and experiments on a few rusts that are of special interest, and may well be noted here. He has shown that the common and abundant Spurge Rust, occurring on very many species of Euphorbia (twelve of which are listed in the Ohio Flora) is able to propagate itself constantly through the germinating seed of its host, and therefore becomes in that way practically a perennial species. He remarks that “It is the only demonstrated example of this manner of propagation in the whole order of Uredineae. Actual cluster-cups may be seen in the hulled seeds of Euphorbia dentata. Seedlings kept under bell jars become rusted three months from the date of planting, showing all stages of the rust, while seeds disinfected with mercuric chloride produce no rusted plants.”