330 



INDEX. 



PAGE. 



Sverdrup, H. U 300 



Publication by 39 



Swamp and Bog Waters 66 



Swann, W. F. G 238 



Publications by 39 



Taft, William H iv 



Talbot, Fritz B 221 



on Energy Metabolism of an Amaurotic 



Family Idiot 229 



Publication by 39 



Tanguy, L. L 248, 249 



Tatlock, John 8. P v 



Report upon Preparation to a Concord- 

 ance to Chaucer 299 



Temperature of Leaves, Apparatus for de- 

 termining 80 



Terrestrial Electricity 238 



Terrestrial Magnetism, Report of Depart- 

 ment of 233-268 



Terrestrial Magnetism, Research Work in 



Washington 237 



Thayer, Ethel H 125 



Thomson, A 236, 257 



Thompson, John W 160 



Tittman, O. H 243 



Tobago 149 



Tokyo, Zoological Laboratory of Imperial 



University of 154 



Transpiration of Trees 290 



Transpiring Power of Plants 72 



Treadwell, A. L 149, 150 



Report on work on Annelids in 1918 . . . 171 

 Study of the Eunicidae of Coral Reefs . . 153 



Trees, Transpiration of 290 



Troy Book, Work on Glossary of 298 



Trustees of Institution xin 



Trustees of Institution, Present and Former . iv 



Trustees, Minutes of Seventeenth Meeting 



of Board of 1—4 



Tuthill, Tracy E 124, 125 



Van Dcman, Esther B v 



van der Bilt, J., Publications by 38, 39 



Van Der Stricht, O., Publication by 27 



Publication concerning the Genesis and 

 Structure of the Membrana Tectoria 

 and the Crista Spiralis of the 



Cochlea 91 



Van Haagen, Walter K., Publication by ... . 28 



Van Maanen, Adriaan 187, 193, 200 



Publications by 34, 37, 39 



Van Wagenen, Bleecker 126 



Variable Stars 207 



Varnum, William B 149, 179, 180 



Vaughan, Thomas Wayland, Publications by 27, 39 

 Vegetable Saps, Osmotic Concentration of . . 116 

 Vegetation of an Imperfectly Drained 



Desert Valley 76 



Vicari, Emilie 103, 109 



Virginia Historical Society 143 



Wahlin, H. B 236, 258 



Wakeman, Alfred J., Publications by 36, 39 



Walcott, Charles D iii, iv, x, xi, 3 



Chairman of Executive Committee for. 



1918 43 



Vice-Chairman of Board of Trustees ... 44 



Walcott, Henry P m, iv, 3 



PAGE. 



Walker, J. A., Publications by 38, 39 



Wallis, W. F 237, 256 



War, Participation of the Institution 7 



Ware, Louise W 195 



Publication by 38 



Warner, D. E 117 



PubUcations by 32, 39 



Washington, Henrj' S., Publications by 35, 39 



Description of the Quantitative Classifi- 

 cation of Igneous Rocks 135 



Manual of the Chemical Analysis of 



Rocks 136 



Publication on Augite from Stromboli . . 132 

 Publication on Calculation of the Ration- 

 al Analysis of Clays 136 



Publication on Chemical Analysis of 



Igneous Rocks 132 



Publication on Italian Leucitic Lavas as 



a sort of Potash 131 



Water Relations of Plants 66-86 



Watson, Ernest M 100, 110 



Publication by 39 



Wave-Length Investigations 194 



Wave-Length, Secondary Standards of 215 



Weaver, J. E 289 



on Ecology of Root Systems 291 



on Phy tometer Method 288 



on Transpiration of Trees 290 



Weeks, David F., on a First Study of Inheri- 

 tance in Epilepsy 123 



on Study of Human Heredity 123 



Weinstein, Alexander 109 



Welch, Donald S 104 



Welch, William H iii, iv, 3, 17 



Wells, Roger C, Publication by 27 



Western Australia, Investigations in 236 



Wheeler, Theodora 92 



Publication by 27 



Study of a Human Spina Bifida Mon- 

 ster with Encephaloceles and other 



Abnormalities 91 



White, Andrew D iv, x 



White, E. Grace, Publication by 28 



White, Edward D iv 



White, Henry iii, iv 



White, Walter P., a note on a Universal 

 Switch for Delicate Potential Meas- 

 urements 135 



on some points regarding Calorimeter 



Efficiency 135 



Publication by 39 



Publication on Calorimetric Lag 137 



Publication on Calorimetric Methods 



and Devices 137 



Publication on Conditions of Calorime- 

 tric Precision 136 



Publication on General Character of 

 Specific Heats at High Tempera- 

 tures 13S 



Publication on Heat Convection in Air 



and Newton's Law of Cooling 127 



Publication on Specific Heat of Plati- 

 num at High Temperatures 135 



Publication on Thermal Leakage and 



Calorimeter Design 131 



