Page 
Astronomy.— Salts, Soil-colloids, and Soils By L.T, Sharp 563 
Anthropology. — The Child and the Tribe .... By Alice C. Fletcher 569 
Petrology. — The Correlation of Potasstctm and Magnesium, Sodium and Iron, 
in Igneous Rocks By Henry S. Washington 574 
Mathematics. — Theorem Concerning the Singular Points of Ordinary Linear 
Differential Equations By George D. Birkhof 578 
Biochemistry. — A Quantitative Study of Cutaneous Analgesia Produced by 
Various Opium Alkaloids 
By David I. Machty N. B. Herman, and Charles S. Levy 582 
Chemistry. — ^The Surface-Tension at the Interface Between Two Liquids 
By William D. Harkins and E. C. Humphery 585 
Astronomy. — Outlines of a Proposed System of Classification of the Nebulae 
BY Means of their Spectra ByW.H. Wright 590 
Astronomy. — Some Probable Identities in Wave-Length in Nebular and Stellar 
Spectra ByW.H. Wright 596 
Physiology. — Energy Transformations during Horizontal Walking .... 
By Francis G. Benedict and Hans Murschhauser 597 
Physiology. — ^The Physiology of the New-Born Infant 
By Francis G. Benedict and Fritz B. Talbot 600 
Physiology.— A Comparison of Methods for Determining the Respiratory 
Exchange of Man By Thome M. Carpenter 602 
Psychology. — ^Neuro-Muscular Effects of Moderate Doses of Alcohol . . . 
By Raymond Dodge and Francis G. Benedict 605 
Genetics. — Variation and Inheritance m Abnormalities Occurring after 
Conjugation in Paramecium caudatum By Ruth J. Stocking 608 
Zoology.— The Influence of the Marginal Sense Organs on Functional 
Activity in Cassiopea xamachana By Lewis R. Gary 611 
Genetics. — Heritable Variations and the Results op Selection in the Fission 
Rate of Stylonychia pustulata By Austin Ralph Middleton 616 
Genetics. — ^Hereditary Anchylosis of the Proximal Phalangeal Joints (Sym- 
phalangism) By Harvey Gushing 621 
Zoology. — The Relati\ts Stimulating Efficiency of Spectral Colors for the 
Lower Organisms . By S.O. Mast 622 
Geography.— The Mission Range, Montana ByW.M. Davis 626 
Mathematics. — Definition of Limit in General Integral Analysis .... 
By Eliakim Hastings Moore 628 
Notice of Scientific Memoir 632 
Report of the Autumn Meeting . 633 
Index 
637 
