Kumbers 2 and 3 are living and Quaternary, and 5-9, inclusi~e, are Cretaceous (and Eocene) of Cooper's Catalogue.Through him the medical profession of the west coast was first made acquzinted with the mode of preparation and therapeutic effects of Ifentel's aluminated solution, Pravoy's solution of perchloride of iron,
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Max F. Meyer (1908) studied this question.