Smithsonian miscellaneous collections . thematerial placed under the microscope will reveal thousands ofthem. Or if fossil material is needed, diatomaceous earth can be 58 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vOL. 48 found in almost every State in the Union and almost every land onearth. Immense beds exist, for example, at Nottingham, Md.; Rich-mond, Va.; Keene, N. H.; Monterey, Santa Monica, Rodondo Beach,Cal.; near Spokane, Wash.; etc.; while smaller deposits are frequentin many other localities. In foreign lands there are large depositsat Sendai, Japan; Ananino and Simbirsk, Russia; Alica
Smithsonian miscellaneous collections . thematerial placed under the microscope will reveal thousands ofthem. Or if fossil material is needed, diatomaceous earth can be 58 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vOL. 48 found in almost every State in the Union and almost every land onearth. Immense beds exist, for example, at Nottingham, Md.; Rich-mond, Va.; Keene, N. H.; Monterey, Santa Monica, Rodondo Beach,Cal.; near Spokane, Wash.; etc.; while smaller deposits are frequentin many other localities. In foreign lands there are large depositsat Sendai, Japan; Ananino and Simbirsk, Russia; Alicate, Sicily;Bilin, Bohemia ; Luneberg, Germany; Mors, Jutland ; Oamaru, NewZealand; Springiield, Barbados ; etc. The cleaning of diatoms of organic matter and the preparation ofthese and fossil forms as permanent microscopic mounts cannot beentered into here. The processes are easily learned from any goodwork on the microscope. Smithsonian Institution,Washington, D. C, March, 1905. SMITHSONIAN MISCELLANEOUS COLLECTIONS VCL. 48, PL. XXII.
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