366 
INDEX 
Ohm's law, deviations from (Bridgman), 
299. 
Origin of Proboscidea (Osborn), 231. 
Osborn, H. F. Adaptive Radiation and 
Classification of the Proboscidea, 231. 
Osborne, T. B., and Mendel, L. B. 
Feeding Experiments with Mixtures 
of Foodstuffs in Unusual Proportions, 
157. 
Pachyderms, skin temperature (Benedict 
et al.), 154. 
Palmer, H. H., see Duane, W., 237. 
Paramecium Aurelia (Woodruff), 41. 
PEASE, F. G. The Angular Diameter of 
Alpha Bootis by the Interferometer, 
177. 
. See Michelson, A. A., 143. 
Peltier effect (Hall), 62. 
Phaseolus vulgaris, anatomy of (Harris 
and Sinnott), 35. 
Phillips, H. B. A Formula for the 
Viscosity of Liquids, 172. 
Photo-thermionic currents (Arnold and 
Ives), 323. 
Phosphorescence destroyed by light (Loeb 
and Schmiedeskamp), 202. 
Planck's constant h (Duane et al.), 237. 
Poisson's equation (Evans), 89. 
Pore sizes in materials (Washburn), 115. 
Positive ray analysis (Dempster), 45. 
Potential theory (Evans), 89. 
Pressures in acoustics (Barus), 207. 
Prediction of egg production (Harris 
et al.), 213. 
Proboscidea, classified (Osborrt), 231. 
Publications of the Academy, 339. 
Publications of the Research Council, 
350. 
Quantum integrals (Kemble), 283. 
Quanternions (Dickson), 109. 
Radiation of Proboscidea (Osborn), 231. 
Rat, parasitic Trypanosoma (Taliaferro), 
138, 163. 
REED, H. S. A Method for Obtaining 
Constants for Formulas of Organic 
Growth, 311. 
Representatives, apportionment of (Hunt- 
ington), 123. 
Reproduction in Paramecium (Woodruff), 
41. 
Roots of Bessel functions (McDonald), 66. 
San Juan, chronology (Morris), 18. 
Schmiedeskamp, L., see Loeb, L. B., 202. 
Semi-co variants (Stouffer), 273. 
Sensitivity of ears (Minton), 221. 
Setchell, W. A., Goodspeed, T. H., and 
Clausen, R. E. A Preliminary Note 
on the Results of Crossing Certain 
Varieties of Nicotiana Tabacum, 50. 
Sextic curves (Coble), 245, 334. 
Shapley, H., and Mayberry, B. W. 
Studies of Magnitudes in Star Clus- 
ters. XIII. Variable Stars in N. G. 
C, 7006, 152. 
Sherman, H. C, LaMer, V. K., and 
Campbell, H. L. The Effect of 
Temperature and of the Concentra- 
tion of Hydrogen Ions upon the Rate 
of Destruction of Antiscorbutic Vi- 
tamin (Vitamin C), 279. 
Sinnott, E. W., see Harris, J. A., 35. 
Skin temperature (Benedict etal.), 154. 
Solubility (Kendall), 56. 
Solutions, gases in (Van Slyke), 229. 
Sound, energy of (Barus), 47. 
Sound, pressures in (Barus), 207. 
Smith, D. P. Experiments on the Elec- 
trical Conduction of a Hydrogen 
Alloy, 28. 
Spectra of light elements (Millikan), 289. 
Spiral nebula, motion in (Van Maanen), 1. 
Star clusters, magnitudes in (Shapley and 
Mayberry), 152. 
Stars, diameters of (Michelson and Pease), 
143; (Pease), 177. 
Stouffer, E. B. Semi-covariants of a 
General System of Linear Homo- 
geneous Differential Equations, 273. 
Sturtevant, A. H. Linkage Variation 
and Chromosome Maps, 181. 
. A Case of Rearrangement of Genes 
in Drosophila, 235. 
Swine, age and fertility (Ellinger), 134. 
Taliaferro, W. H. Variation and In- 
heritance in Size in Trypanosoma 
Lewisi, 138, 163. 
Thermo-electricity (Hall), 62, 98. 
Thermal conduction (Hall), 98. 
Thermometer, differential (Menzies and 
Wright), 77. 
Trypanosoma, variation and inheritance 
of size (Taliaferro), 138, 163. 
Typhoid epidemics (Flexner and Amoss), 
319. 
Ultra violet light and phosphorescence 
(Loeb and Schmiedeskamp), 202. 
Ultra-violet spectrum (Millikan), 289. 
Uracil and hydrouracil (Johnson and 
Brown), 75. 
Vanadium minerals (Lindgren), 249. 
Van Maanen, A. Internal Motion in 
the Spiral Nebula Messier 33, 1. 
Van Slyke, D. D. An Apparatus for 
Determination of the Gases in Blood 
and Other Solutions, 229. 
Van Slyke, D. D., and Hiller, A. An 
Unidentified Base among the Hy- 
drolytic Products of Gelatin, 185. 
Variable stars (Shapley and Mayberry), 
152. 
Variation in Trypanosoma (Taliaferro), 
138, 163. 
