412 



INDEX. 



PAGE. 



Smith, M. B 282 



Smith, Sinclair 209, 248, 250 



Smith, Theobald v, vi 



Smyth, Charles P., Pubhcation by 30 



Smyth, F. Hastings vii 



Snider, George G 108 



Snyder, F. F 89 



Pubhcations by 30 



Snyder, L. H 103 



Solar Eclipse of September 21, 1922. . . 279, 295 



Solar Lines, Displacements of 214 



Solar Photography 210 



Solar Research 210-220 



Solar Rotation 217 



Solar Wave-Lengths 215 



Solberg, H 371 



Pubhcation by 30 



Sopena, Juan M 310,311,312 



Sosman, Rol)ert B vii 



on Realization of Absolute Scale of 



Temperature 145 



Publication by 30 



Space-Velocities of Stars and Stream 



Motion 232 



Spannuth, J. R vii, 120 



Spaulding, M. H 77 



Spectra of Faint Stars in Kapteyn's 



Selected Areas, Classification of . . . 233 



Spectra of Nebulae and Nebulous Stars. . 225 



Spectral Energy Distribution 249 



Spectrum of Venus, Absence of Oxygen 



and Water-Vapor Lines 218 



Spiral NebulfB, Internal Motions in 224 



Spoehr, H. A vii 



on Carbohydrate-Amino Acid Rela- 

 tion in Respiration of Leaves. ... 48 

 on Carbodydrate Metabolism of 



Leaves 52 



on Determination of Small Amounts 



of Various Sugars in Leaves 54 



on Influence of Various Sugars on 



Respiration 53 



on Mechanism of Photosynthesis and 



Internal Factor 49 



on Photosynthesis 47 



on Temperature Coefficients and 



Efficiency of Photosynthesis 51 



Spooner, John C vi, xi 



Stars and Nebulae, Researches on 220-246 



Stars, Masses and Densities of 235 



Steiner, W. F 282 



Stellar Classifications 233 



Stellar Photometry 226 



Stellar Spectroscopy 228 



Stellar Wave-Lengths 196 



Stewart, J. Q 285 



St. John, Charles E., viii, 206, 208, 209, 213, 215, 

 216, 217, 218 



Publications by 30 



PAGE. 



Stock, Chester 398, 400 



Publications by 30 



Researches in Palaeontology 399 



Stock, Leo F vii, 162 



Strand Vegetation of Pacific Coast 74 



Strauss, E., Publications by 30 



Streeter, George L vii 



Pubhcations by 30 



Report as Director of Department of 



Embryology 76-92 



Stromberg, Gustav viii, 200, 208, 230, 235 



Publications by 30 



Strong, L. C 113, 114 



Sturtevant, A. H viii, 93, 100 



on Study of Constitution of Germ- 

 plasm in Relation to Heredity. . . . 325 



Sun, K. F 388 



Sun-spot Activity and Polarities 210 



Sun-spot Spectra 212 



Surrey, N. M. Miller 152, 153,154 



Sverdrup, H. U 273, 274, 275, 282 



on Magnetic Observations on Maud 



Expedition 307 



Publications by 30 



Swann, W. F. G 292 



Swezy, Ohve, Pubhcation by 30 



Swift, E. H 329 



Sykes, Godfrey vii 



Tahiti, Vegetation of 180 



Talbot, Fritz B 256, 258, 259 



Tamaru, Tetsuro, Publication by 31 



Tanakadate, A 292 



Tanch, J. W 166 



Tasker, Arthur N 321 



Tatlock, John S. P ix 



Preparation of Concordance to 



Chaucer 368 



Taxonomy, Experimental 342 



Taylor, W. P., on Principles and Methods 



of Bio-ecology 355 



Teredo, Experiments on Feeding of 176 



Terrestrial Electricity, Experimental Work 272 

 Terrestrial Magnetism, Report of De- 

 partment of 266-309 



Terrestrial Wave-Lengths 214 



Tetraploids 99 



Thompson, M 92 



Thomson, A viii, 278, 282 



Thomson, Elihu 239 j 



Thomson, J.J 333 I 



Thornley, Isoble D 152 



Thornton, Mary 160 



Thorvaldson, Thorburger, Pubhcation by 31 



Tibbals, E. A 282 



Tibbetts, Emma L 282, 290, 297 



Tolman, R. C 331, 332 



Trigonometric Parallaxes and Proper 



Motions 225 



Trowbridge, Augustus 268 



