762 
INDEX 
Gas molecules, condensation and evapora- 
tion of (Langmuir), 141. 
Germ cells in the loggerhead turtle embryo 
(Jordan), 271. 
Glacial erosion, Montana (Davis), 696. 
GoLDFARB, A. J. Variability of Germ 
Cells of Sea Urchins, 241. 
GoMBERG, M., and Schoepfle, C. S. The 
Molecular Weights of the Triaryl- 
methyls, 457. 
Gravimetric survey of the United States ■ 
(Bowie), 171. 
Gravitational theory of Einstein (St. John), 
450. 
Green, G. M. On the General Theory of 
Curved Surfaces and Rectilinear Con- 
gruences, 587. 
Growth and fecundity of alcoholized rats 
(MacDowell and Vicari), 577. 
Growth and reproduction under rations bal- 
anced from restricted sources (Hart 
and others), 374. 
Haas, A. R. C. Rapid Respiration after 
Death, 688. 
Hadley, S. E., see Johnson, T. B., 418. 
Hall, E. H. A possible Function of the 
Ions in the Electric Conductivity of 
Metals, 163. 
Hall, N. F., see Richards, T. W., 339. 
Hardy, G. H., and Littlewood, J. E. Some 
Problems of Diophantine Approxima- 
tion: The Series 2e (Xn) and the 
Distribution of the Points (Xna), 84. 
Harkins, W. D. and Aronberg, L. The 
Spectra of Isotopes and the Vibration 
of Electrons in the Atom, 710. 
Harris, J. A., Blakeslee, A. F., and 
Warner, D. E. Body Pigmentation 
and Egg Production in the Fowl, 237. 
Harris, J. A., Blakeslee, A. F., and 
KiRKPATRiCK, W. F. Inter-Periodic 
Correlation in the Egg Production of 
the Domestic Fowl, 565. 
Harrison, R. G. Transplantation of 
Limbs, 245. 
Hart, E. B., McCollum, E. V., Steenbock, 
H., and Humphrey, G. C. Physiologi- 
cal Effect on Growth and Reproduc- 
tion of Rations balanced from Restricted 
Sources, 374. 
Harvey, E. B A Physiological Study of 
Noctiluca, with Special Reference to 
Light Production, Anaesthesia and 
Specific Gravity, 15. 
Hatai, S. On the Composition of the 
Medusa, Cassiopea Xamachana and 
the Changes in it after Starvation, 22. 
Heliotropic animals as photometers (Loeb 
and Northrop), 539. 
Heliotropism, muscle tension theory of 
(Garrey), 602. 
Helium, stark effect in (Nyquist), 399. 
Heredity, share of egg and sperm in (Conk- 
lin), 101. 
Heterosis and linked factors (Jones), 310. 
Horned toad, reactions of the melanophores 
of (Redfield), 202, 204. 
Howell, J. T., see Anslow, G. A., 409. 
Hull, A. W. The Crystal Structure of 
Magnesium, 470. 
Human energy, temperature optima for 
(Huntington), 127. 
Humphrey, G. C, see Hart, E. B.,^ 374. 
Huntington, E. Temperature Optima for 
Human Energy 127. 
Hydrogen, specific heat (Shields), 502. 
Hydroids, responses to gravity (Parker), 
72. 
Hydrology of the Isthmus of Panama (Ab- 
bot), 41. 
Hydrolysis of the simplest secondary Nu- 
cleoside (Johnson and Hadley), 418. 
Hymenopterous parasites (Brues), 136. 
H3Tpophysis cerebri, extracts of (Abel and 
Pincoffs), 507 
Iddings, J. P., and Morley, E. W. A Con- 
tribution to the Petrography of the 
Island of Bawean, Netherlands Indies, 
105. 
. A Contribution to the Petrography 
of Southern Celebes, 592. 
Indicators, vasectomized male mice as 
(Little), 186. 
Infantile paralysis (Flexner), 416. 
Infra-red absorption spectra of diatomic 
gases (Brinsmade and Kemble), 420. 
Instincts, constituents of (Craig), 685. 
Interferometry (Barus), 116, 334, 360, 412, 
436, 563, 665, 693. 
International standard of electric current 
(Rosa and Vinal), 59. _ 
Invertebrates, chemical differentiation of 
the central nervous system (Moore), 598. 
Ionization of strong electrolytes in dilute 
solutions (Washburn), 569. 
Ions, and electric conductivity of metals 
(Hall), 163. 
Iron, nickel, and cobalt, magnetization of 
(Barnett), 178. 
Island of Bawean, petrography of (Iddings 
and Morley), 105. 
Isostasy in United States (Bowie), 171. 
Isostatic subsidence of volcanic islands 
(Davis), 649. 
Isothiocyanates, transforming of esters of 
a-aminoacids into (Johnson and Tick- 
nor), 303. 
Isotopes, spectra of (Harkins and Aron- 
berg), 710. 
Isotopic forms of lead (Richards and Hall), 
339. 
Isthmus of Panama, hydrology of (Abbot), 
41. 
Jamin's interferometer (Barus), 337. 
Jeffrey, E. C. Petrified Coals and their 
Bearing on the Problem of the Origin 
of Coals, 206. 
