ELYMUS VIRGINICUS, L .- VAR. GLAUCUS. W. J. BEAL. IN August, 1888, I found three or four plants of Elymus Virginicus, L., within ten feet of each other that were glaucous. These were among the usual non-glaucous plants, and grew on rich river bottoms. I saved seeds of both forms and planted patches about ten by sixteen feet. On August 24th, 1889, I examined both plots with the following results: There were nearly four hundred plants in each plot. Those from seeds of non-glaucous plants were none of them glaucous, while those from seeds of the glaucous plants were all glaucous except two plants. I exhibit here dried plants of the glaucous and non-glaucous seedlings, and specimens of the glaucous plants found in 1888. The practical bearing of this experiment is not far to see. It shows how promptly a peculiarity may often be transmitted by the seedings of the first generation.