558 



SCIENCE 



[N. S. Vol. XLII. No. 1086 



Invariantive Characterization of Nilpotent Alge- 

 bras." 



Oscar Fred Hedenburg : "On the Esters, as 

 well as the Monomoleeular B- and i/-Laetones of 

 d-Mannonic and cJ-Glueonic Acids; On Ortho-Bis- 

 d-Galactonie Acid, d-Galaetonic i/-Laetone and Its 

 Mono-Hydrate. ' ' 



Lewis Victor Heilbrnnn: "Studies in Artificial 

 Parthenogenesis: II. Physical Changes in the 

 Arhacia Egg." 



Albert Edward Hennings: "A Study of the 

 Contact Potentials and Photo-Electric Properties 

 of Metals in Vacuo." 



Edwin Frederick Hirseh: "An Experimental 

 Study of the Influence of lodin and Iodides on 

 the Absorption of Granulation Tissue and Fat- 

 free Tubercle Bacilli." 



Louis Allen Hopkins: "On the Theory of the 

 Motion of the Small Planets with a Periodic Orbit 

 for the Hilda Type." 



Edmund Charles Humphrey: "Surface Tension 

 at the Interface between Two Liquids." 



Andrew Henderson Hutchinson: "Fertilization 

 in Abies 'balsamea." 



Libbie Henrietta Hyman: "An Analysis of the 

 Process of Regeneration in Certain Microdrilous 

 Oligochsetes. ' ' 



Wellington Downing Jones: "Geography of 

 Northern Patagonia. ' ' 



Frank Craig Jordan: "The Color Changes of 

 Certain Variable Stars of Short Period." 



George Frederick Kay: "The Geology and Ore 

 Deposits of Riddle's Quadrangle, Oregon." 



Charles Edwin King: "The Origiu of the Dias- 

 tases of the Blood and the Lymph." 



Harold Reynolds Kingston : " Metric Proper- 

 ties of Nets of Plane Curves." 



Harry Dexter Kitson : ' ' The Scientific Study of 

 the College Student." 



Francis Leroy Landacre: "The Origin of the 

 Cranial Ganglia in Amemrus." 



John Tiu-Bong Lee: "The Determination of 

 'e' by the Small-Drop Method Using Solid 

 Spheres. ' ' 



James Henry Lees: "The Geological History 

 of the Des Moines Valley." 



Edwin Daniel Leman : ' ' The Relation between 

 the Alpha-Ray Activities and Ranges of Radio- 

 active Substances. ' ' 



Julian Herman Lewis: "The Absorption of 

 Substances Injected Subcutaneously and the In- 

 hibitory Action of Heterologous Protein Mixtures 

 on Anaphylaxis. ' ' 



William Vernon Lovitt : "A Type of Singular 

 Points for a Transformation of Three Variables." 

 Bertha Edith Martin: "Tooth Development in 

 Dasypus novemcinctus. ' ' 



Kirtley Fletcher Mather : ' ' The Fauna of the 

 Morrow Group of Arkansas and Oklahoma. ' ' 



Agnes Fay Morgan : "I. Viscosities of Various 

 Methyl and Ethyl Imido-benzoates and of the 

 Sodium Salts of Para and Meta Nitrobenzoyl- 

 chloroamides in Moderately Concentrated Aqueous 

 Solutions. II. The Molecular Rearrangement of 

 Some Triaryl Methylchloroamines. ' ' 



Roberts Bishop Owen : ' ' The Psychology of 

 Recognition. ' ' 



Harry Morrill Paine: "The Effects of Salts on 

 the Solubility of Other Salts: I. The Solubility 

 Relations of a Very Soluble Bi-univalent Salt. II. 

 The Ionization of Bi-bivaleut Salts. ' ' 



Almon Ernest Parkins: "The Historical Geog- 

 raphy of Detroit." 



Harley Martin Plum : ' ' The Extraction and 

 Separation of the Radioactive Constituents of Oar- 

 notite. " 



Vincent Collins Poor : "A Certain Type of Ex- 

 act Solution of the Equations of Motion of a Vis- 

 cous Liquid. ' ' 



Terence Thomas Quirke: "Geology of Es- 

 panola District. ' ' 



Isaiah March Rapp : ' ' Flow of Air through 

 Capillary Tubes. ' ' 



George Burton Rigg : ' ' Decay and Soil Toxins. ' ' 



Eva Ormenta Schley : ' ' Physical and Chemical 

 Changes Involved in Geo-presentation and Geo- 

 reaetion.'' ' 



Luther Crocker Snider: "The Geology and 

 Paleontology of the Mississippian Rocks of North- 

 western Oklahoma. ' ' 



Bert Allen Stagner : "On the Molecular Rear- 

 rangements of Triarylmethyl Hydroxylamines. ' ' 



Eugene Austin Stephenson : ' ' Hydrothermal 

 Alteration of Feldspars." 



James Palm Stober: "A Comparative Study of 

 Winter and Summer Leaves of Various Herbs." 



Clare Christman Todd: "The Action of Alka- 

 line Hydrogen Peroxide on d. Galactose." 



Stephen Sargent Visher: "The Geography of 

 South Dakota. ' ' 



Forbes Bagley Wiley: "Proof of the Finite- 

 ness of the Modular Covariants of a System of 

 Binary Forms and G'ogredient Points." 



HARVARD UNIVBRSITT 



Frederick Osband Anderegg: I. A Contribu- 

 tion to the Study of the Silver Coulometer. II. 



