Child Development and the Interpretation of Behavior.

The American Association for the Advancement of Special Articles: Science: The Influence of Hyperpnea and of Variations in Child Developnent and the Interpretation of Bethe O2and CO2-Tension of the Inspired Air on havior: PROFESSOR JOHN E. ANDERSON. 245 Word-Associations: PRoFEssoR E. GELHORN and Obituary: Dn. S. H. KRAINES. The Influence of the Adrenal Warren Elmer Hinds: B. A. OSTERBERiER. Henry Glands on Calcium Metabolism: DR. I. SCHOuR and Ware Cattell ..................... 252 PROFESSOR J. M. RoGoFE. Light and Beproduction Scientific Events: in Game Birds: DR. LEONARD B. CLARK, DR. SAMThe Royal Institution; First Meeting of the PhytoUEL L. LEONARD and GARDINER BumP. Anopheles pathologists of Brazil; Work of the Committee on Experimentally Infected with Malaria Plasmodia: Unemployment and Relief for Chemists and ChemMAJOR JAMES S. SIMMONS .. ... 266 ical Engineers; Presentation of the William H. Scientific Apparatus and Laboratory Methods: Nichols Medal to Dr. Clark ...... ................. 252 Device for the Motor Conditioning of Small AniScientific Notes and News ..... .................. 255 nals: W. J. BROGDEN and DB. ELMER CULLER. An Discussion: Aid in Color-Blindness: THOMAS ROSS.269 Cortical Excitatory State and Variability in HuScience News. 8 man Brain Rhythms: PROFESSOR HERBERT H. JASPER. The Moisture Relations of Pecan Leaves: DE ALTON H. FINCH and CLIFroN W. VAN HORN. SCIENCE: A Weekly Journal devoted to the AdvanceThe " Flight " of Flying Fish: PROFESSOR LEONARD ment of SMience, edited by J. MOKEEN CATTELL and pubB. LOEB. Flying Fish: DR. ALE.xANDER FORBES. lished every Friday by Propulsive Power Used by Flying Fish: DR. C. A. EN E E MILLS. Present Status of the "Geology of North THE SCI NCE PR SS America": DR. RuDoLF RUEDEMANN. 259 New York City: Grand Central Terminal Scientific Books: Lancaster, Pa. Garrison, N. Y. History of Science: DR. EENRY E. SIGERIST. OuIr Annual Subscrilption, $6.00 Single Copies, 15 Ots. Enemy, the Termite: DR. L. 0. HOWARD.262 SCIENCE is the official organ of the American AssociaSocieties and Meetings: tion for the Advancement of Science. Information regardFirst North Central States Fish and Game Confering membership in the Association may be secured from the office of the permanent secretary, in the Smithsonian ence: DR. T. H. FRISON .. 265 Institution Building, Washington, D. .