INDEX 
Abbot, C. G., Fowle, F. E., and Ai^drich 
L. B. The Larger Results of 20 
Years of Solar Radiation Observa- 
tions, 177. 
Absorption in electric furnace (King), 
123. 
Acoustic topography (Barus), 96, 119. 
Adams, W. S., and Joy, A. H. A Method 
of Deriving the Distance of the A- 
Type Stars, 173. _ 
Adrenalin effects upon pigment (Gilson), 
130. 
Age distribution, stability of (Lotka), 339. 
Age index of a population (Pearl and 
LeBlanc), 300. 
Aldrich, L. B., see Abbot, C. G., 177. 
Aliphatic amines and hydroquinol (Har- 
ger), 57. 
Aluminium effects on short X-rays (Duane 
and Mazumder), 45. 
Amiurus Nebulosus, degeneration and 
regeneration (Chambers), 186. 
Anderson, J. A. The Spectral Energy 
Distribution and Opacity of Wire 
Explosion Vapors, 231. 
Animal evolution (Clark), 219. 
Animals, color vision (Hamilton), 350. 
Antiquity of man (Osborn and Reeds), 
246. 
Argentite, light effects on (Sheldon and 
Geiger), 161. 
Atomic sizes (Davis), 61. 
Audition and nerve-deafness (Minton), 
274. 
Automobile steering (Webster), 100. 
Bache Fund, N. A. S., 16. 
Bactericidal properties of radium (Mar- 
shall), 317. 
Barus, Cari.. Experiments with the 
Vacuum Gravitation Needle, 13. 
. Periods and Logarithmic Decre- 
ment of the Gravitation Needle 
Under High Exhaustion, 63. 
. Plane Reflection of Sound, as 
Exhibited by the Pinhole Resonator, 
66. 
. Acoustic Topography Varying with 
the Position of the Organ Pipe, 96. 
— — . Cylindrical Distribution of Nodal 
Strength Around the Pipe Normal, 
119. 
— Pinhole Resonators, 163. 
. Static Deflection, Logarithmic 
Decrement and First Semi-Period of 
: V the Vacuum Gravitation Needle, 313. 
. On a Comparison of the Relative 
Sensitiveness of Telephones, 326. 
. The Equilibrium Positions of the 
Vacuum Gravitation Needle in 
1921 and 1922, 327. 
Beryllium and beryllium oxide, structure 
(McKeehan), 270. 
Bi^AKESLEE, A. F., and Sinnott, E. W. 
Structural Changes Associated with 
Factor Mutations and with Chromo- 
some Mutations in Datura, 17. 
Blumberg, H. New Properties of all 
Real Functions, 283. 
Bridgman, p. W. The Compressibility 
of Metals at High Pressures, 361. 
Brown, E. B. see Johnson, T. B., 187. 
Bunting, M. A Preliminary Note on 
Tetramitus, a Stage in the Life Cycle 
of a Coprozoic Amoeba, 294. 
Burger, M. H, see Pearl, R., 71. 
Case, F. H., see Johnson, T. B., 44. 
Chalcedony and silica (Washburn & 
Navias), 1. 
Chambers, M. H. Degeneration and 
Regeneration of the Lateral-Line 
Organs in Amiurus Nebulosus, 186. 
Chromosome mutations in datura (Sin- 
nott and Blakeslee), 17. 
CivARK, A. H., Animal Evolution, 219. 
Clark, G. L., and Duane, W. A New 
Method of Using X-Rays in Crystal 
Analysis, 90. 
Clarke, F. W., and Washington, H. S. 
The Average Chemical Composi- 
tion of Igneous Rocks, 108. 
Climatic changes and peat deposits (Dach- 
nowski), 225. 
CoBLENTz, W. W. Effective Tempera- 
ture of 16 Stars as Estimated from 
the Energy Distribution in the 
Complete Spectrum, 49. 
. Further Measurements of Stellar 
Temperatures and Planetary Radia- 
tion, 330. 
Cole, W. H. Skin Transplantation in 
Frog Tadpoles, 29. 
Color vision in animals (Hamilton), 350. 
Compressibility of metals (Bridgman), 
361. 
Conduction in metals (Hall), 307. 
Coordinates, normal (Veblen), 192. 
Copper, effects on short X-rays (Duane- 
and Mazumder), 45. 
Coprozoic Amoeba (Bunting), 294. 
Coral reefs (Davis), 7. 
Crystal analysis by X-rays (Clark and 
Duane), 90. 
Crystal structure of beryllium (McKee- 
han), 270. 
Crystal structure of potassium (McKee- 
han), 254. 
Cucurbita Pepo seeds, effects on kidney 
excretion (Masurovsky), 39. 
369 
