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3 [[preprinted]] UNITED STATES NATIONAL MUSEUM UNDER DIRECTION OF THE SMITHSONIAN INSTITUTION WASHINGTON [[/preprinted]] condition dried, bottled, and labelled, after which, they are added to the exhibit, which is arranged as follows: first, Animal Products; second, Vegetable Products; third, Products of Fermentation and Distillation; fourth, Inorganic Products; the entire collection being prefaced by an assay of all the "Medicinal Forms" in which medicines occur. [[underlined]] III Review of Researches and Papers published. [[/underlined]] In January a translation from the German of Professor Heubner's Experimental Diptheria made by the curator of this section was published by Geo. S. Davis & Co, of Detroit, Mich. In February two specimens of cinchona bark - one from Guatemala and one from Costa Rica, were presented to this section of the museum for assay. This was performed with the following results: Total alkaloids per cent. Ether soluble alkaloids per cent. Guatemala 8.00 4.00 Costa Rica 0.80