MARINE PRODUCTS. OF COMMERCE

By Donald K. Tressler, PH. D., ChemicalCatalog Company, New York.

A very good general survey of the fishing industries for both the scientific and the practical man. All important marine industries of the world are commented on and special attention is given to American industries and methods. Among those treated are Potash, Agar-Agar, Pearl, Coral, Fish, Leather, Oyster, Clam, Shrimp, Crab, Lobster, Turtle, Whale, Seal, and Sponge industries. This volume gives an interesting insight into the importance and magnitude of marine industries and the latent possibilities for unlimited development of new fields of investigation and sources of supply.

Department of Zoology.