INDEX 
721 
Mutant in Drosophila (Bridges), 660. 
Myers, C. N., and Voegtun, C. The 
Chemical Isolation of Vitamines, 3. 
National Academy oi^ Sciences. 
Report of the Autumn Meeting, 43. 
. Report of the Annual Meeting, 
442. 
. Grants from Trust Funds, 445. 
. Committee Report on the Kilauea 
Volcano Observatory, 706. 
National Research Council. Minutes 
of Executive Board, 335. 
Nerve centers, hyperplasia of (Detwiler), 
96. 
Nervous system (Detwiler), 695. 
Nichols, B. L., and Wilbur, D. T. 
Luminescence at High Temperatures, 
693. 
Nitrates, effect on reducing power (Gla- 
ser), 272. 
NoGUCHi, H. Leptospira Icteroides and 
Yellow Fever, 110. 
NoYES, A. A., and MacInnes, D. A. 
The Ionization and Acitivity of 
Largely Ionized Substances, 18. 
Nuclear activity (Tennent), 217. 
Organic systems, rhythm in (Lotka), 410. 
OSBORN, H. F., and Mook, C. C. Re- 
construction of the Skeleton of the 
Sauropod Dinosaur Camarasaurus 
Cope (Morosaurus Marsh), 15. 
Osmose, anomalous (Bartell), 306. 
Osmosis in solutions (Loeb), 211. 
Page, L. a Kinematical Interpretation 
of Electromagnetism, 115. 
Patterson, R. A., see Duane, W., 509, 
518. 
Pearl, R. A Contribution of Genetics 
to the Practical Breeding of Dairy 
Cattle, 225. 
. On a Single Numerical Index of 
the Age Distribution of a Popula- 
tion, 427. 
Pearl, R., and Reed, L. J. On the 
Rate of Growth of the Population 
of the United States since 1790 and 
Its Mathematical Representation, 
275. 
Persistence of vision (Hardy), 221. 
Phillips, H. B., see Moore, C. L. E., 135. 
Photoreception (Hecht), 112. 
Platinum black, heat production in 
(Loeb), 107. 
Platinum, critical potentials (Webster), 
26. 
Poliomyelitis (Flexner), 103. 
Population growth (Pearl and Reed), 275. 
Population, age distribution in (Pearl), 
427. 
Potentials, critical, of platinum and 
tungsten (Hoyt), 639. 
Pressure, effect on resistance (Bridgman), 
505. 
Protein requirement for man (Sherman), 
38. 
Products in geometry (Moore and Phil- 
lips), 135. 
Pterergates in Pogonomyrmex (Shapley), 
687. 
Radiation from Sun (Abbot), 4, 82. 
Radioactive radiations (Kovarik), 105. 
Reed, H. S. The Dynamics of a Fluc- 
tuating Growth Rate, 397. 
Reed, L. J., see Pearl, R., 275. 
Regulation, functional (Detwiler), 695. 
Reid, H. F., see Cross, W., 706. 
Relationship and geographical distribu- 
tion (Metcalf), 432. 
Relativity (Eisenhart), 679. 
Report of the Autumn Meeting of the 
Academy, 43. 
Report of the Annual Meeting of the 
Academy, 442. 
Resistance, effect of pressure on (Bridg- 
man), 505. 
Retinal adaptation (Hecht), 112. 
Rettger, L. F., see Cheplin, H. A., 423, 
704. 
Rhythm in organic systems (Lotka), 410. 
RiFEOLT, N., see Thompson, L. T. E., 169. 
Ringer, M., see Underhill, F. P., 692. 
Rockets in weather forecasting (Goddard), 
493. 
Schoenflies' theorem (Kline), 529. 
Sea-level sinking (Daly), 246. 
Seismology (Cross et al.), 706. 
Seminvariants of differential equations 
(Stouffer), 645. 
Sex-ratio in man (Little), 250. 
Shapley, H. Note on a Simple Device 
for Increasing the Photographic Pow- 
er of Large Telescopes, 127. 
. Thermokinetics of Liometopum 
Apiculatum Mayr, 204. 
. Studies of Magnitudes in Star 
Clusters, XI. Frequency Curves of 
the Absolute Magnitude and Color 
Index for 1152 Giant Stars, 293. 
. Preliminary Report on Pterergates 
in Pogonomyrmex Californicus, 687. 
Shapley, H., and Davis, H. N. Studies 
of Magnitude in Star Clusters, XII. 
Summary of a photometric investi- 
gation of the globular system. Mes- 
sier 3, 486. 
Sheldon, H. H. Charocal Activation, 
178. 
Sherman, H. C. The Protein Require- 
ment of Maintenance in Man, 38. 
Spectroscopy with tube resistance fur- 
nace (King), 701. 
Spectra of explosions (Anderson), 42. 
Ship, starting of (Whittemore), 182. 
Siouans, anthropometry of, 131 
Smith, E. A., see Guyer, M. F., 135. 
Social insects (Shapley), 687. 
