Bulletins. 1, Report of investigation of coastal waters in vicinity of Gulfport and Biloxi, Miss., with special reference to pollution of shellfish, by R. H. Creel; 2, Comparison of methods for determination of oxygen in waters in presence of nitrite, by Elias Elvove; 3, Some new compounds of choline type, 3, Including preparation of monoacetate of α β dioxy-β-methyl butane, by G. A. Menge; 4, Detection of white phosphorus in matches, by Earle B. Phelps; 5, Chemical composition of rubber used in nursing nipples and in some rubber toys, by Earle B. Phelps and Albert F. Stevenson; 6, Analysis of thymol capsules, by Atherton Seidell; 7, Seasonal variation in composition of thyroid gland, by Atherton Seidell and Frederic Fenger; 8, Note on new apparatus for use with Winkler method for dissolved oxygen in water, by Hyman L. Shoub; 9, Pharmacological action of some serum preservatives [with bibliography], by Carl Voegtlin.

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