Part 45

SMITH, H. M. The Seaweed Industries of Japan. Bulletin of the Bureau of Fisheries, 24, 1904, 135.

Bibliography 226:

SÖRENSEN, S. P. L. Enzymstudien. Biochem. Ztschr., 21, 1909, 131 and 201.

Bibliography 227:

WHIPPLE, G. C. On the Necessity of Cultivating Water Bacteria in an Atmosphere Saturated with Moisture. Tech. Quart., 12, 1899, 276.

Bibliography 228:

WHITTAKER, H. A. The Source, Manufacture and Composition of Commercial Agar-agar. Jour. Amer. Pub. Health Assoc., n. s. 1, 1911, 632.

Bibliography 229:

CLARK, W. M. and LUBS, H. A. The colorimetric determination of the hydrogen-ion concentration of bacteriological culture media. Jour. Wash. Acad. Sciences, 6, 1916, 483.

Bibliography 230:

CLARK, W. M. and LUBS, H. A. The colorimetric determination of hydrogen-ion concentration and its application in bacteriology. Jour. of Bact., 2, 1919, 1 and 109.

Bibliography 231:

COHEN, B. and CLARK, W. M. The growth of certain bacteria in media of different hydrogen-ion concentrations. Jour. of Bact., 4, 1919, 409.

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FENNEL, E. A. and FISHER, M. A. Adjustment of culture medium reactions. Jour. of Inf. Diseases, 25, 1919, 444.

Bibliography 233:

JONES, H. M. A rapid hydrogen-ion electrode method for the determination of hydrogen-ion concentrations in bacterial cultures or other turbid or colored solutions. Jour. of Inf. Diseases, 25, 1919, 262.

INDEX.

Acidity, determination of, 39.

Acids, mineral, 41.

Agar, nutrient, 94, 96. lactose-litmus, 97.

Alkali carbonates, 39.

Alkalinity, determination of, 35.

Albuminoid nitrogen, 20.

Aluminium sulfate, determination of, 41. analysis of, 78.

Aluminium and iron, determination of, 57.

Ammonia nitrogen, determination of, 15.

Apparatus, bacteriological, 93.