August 28, 1903.] 



SCIENCE. 



261 



Burt Laws Hartwell : ' The Action of Organic 

 Bases upon the Kare Earths.' 



Carl Kelsey : ' The Xegro Farmer.' 



William McCleHan: ' Thermo-Electric Be- 

 havior of Xickel Nitrate.' 



Lewis Irving Xeikirk: 'Groups of Order p'" 

 which contain Cyclic Subgroups of Order p'— ^.' 



James Allen Nelson: 'The Early Development 

 of Ditiophitus : a Study in Cell Lineage.' 



Orville Paul Phillips: 'A Comparative Study 

 of the Cj"tology and Movements of the Cyano- 

 phyceie.' 



George Philipp Scholl: 'The Electrolytic 

 Determination of Manganese and its Separation 

 from Iron and Zinc' 



Walter Thomas Taggart: ' Electrolj-tic Deter- 

 mination of Nickel and Phosphate Solution.' 



COBXELL UXI\"EBSITY. 



James Adrian Bizzell : ' Behavior of Phos- 

 phoric Acid in the Soil.' 



Arthur Wesley Browne : ' Contribution to the 

 Chemistry of Hydronitric Acid and the Trini- 

 trides.' 



William Weber Coblentz: ' Some Optical Prop- 

 erties of Iodine.' 



Elmer Reginald Drew: 'The Radiant Effici- 

 ency of the Electric Discharge through Gases at 

 Low Pressures.' 



Jacob Goodale Lipman : ' Nitrogen-fixing Bac- 

 teria.' 



Sanford Alexander JIoss : ' The Gas Turbine.' 



Perley Gilman Nutting: 'Ultra-violet Rotary 

 Dispersion.' 



Hugh Daniel Reed : ' The Cranial Osteology 

 and Relationships of the Family PercopsidiB.' 



William Albert Riley : ' The Embryological 

 Development of the Skeleton of the Head of 

 Blatta.' 



Emil Peter Sandsten: 'Conditions which Af- 

 fect the Fertility of Pollen.' 



Ernest William Schodcr: 'An Experimental 

 Study of the Resistances to the Flow of Water 

 in Pipes.' 



John Edgar Teeple: 'On Bilirubin, the Red 

 Coloring-matter of the Bile.' 



George Washington Taplcy Whitney: 'Recent 

 Theories of Psychical Causality.' 



VAI^ UXIVEBSITT. 



John Charles Blake: 'On Colloidal Silver 

 and Gold.' 



Wilton Everett Britton: 'Vegetation of the 

 North Haven Sand Plains.' 



Edgar Roscoe Cumings: 'The Morphogenesis 

 of I'latystrophia; A Study of the Evolution of a 

 Paleozoic Brachiopod.' 



William Ebcnezer Ford, Jr.: 'Investigations 

 in ilineralogy.' 



Henry Franklin Merriani : ' Researches in 

 Organic and Inorganic Chemistry.' 



Helen Abbot Merrill: 'On Solutions of Dif- 

 ferential Equations which Possess an Oscillation 

 Theorem.' 



Oscar Stoddard Pulman, Jr.: 'The Quantitative 

 Determination of Uranium, with Applications to 

 the Estimation of Phosphoric Acid; to which is 

 Appended a Method for the Determination of 

 Molybdic Acid, with Application to the Estima- 

 tion of Phosphoric Acid.' 



Allen Douglas Risteen: 'The Numerical Eval- 

 uation of the Absolute Thermodynamic Scale of 

 Temperature.' 



Henry Hollister Robinson: 'Geology of San 

 Francisco Mountain and Vicinity, Arizona.' 



Elias Howard Sellards: 'A Study of Some 

 Paleozoic Plants and Insects.' 



Carl Ebin Stromquist: 'On a Special Case of 

 the Generalized Integral of Length, together with 

 Certain Contributions to the General Theory.' 



Frank Pell Underbill : ' Further Experiments 

 on the Physiological Action of the Proteoses.' 



George Benjamin \Vhite: ' Purin Metabolism 

 and Allantoin Formation, an Experimental 

 Study.' 



JOHNS HOPKINS UNIVEBSITY. 



Benjamin Franklin Carver: 'A Studj- of New 

 Semi-permeable Membranes Prepared by the 

 Electrolytic Method.' 



Henry Augustus Converse: 'On a System of 

 Hypocycloids of Class Three Inscribed to a given 

 3-line and some Curves Connected with it.' 



John P. Coony : ' A Study of Some New 

 Semi-permeable Membranes.' 



Charles Keyser Edmunds : ' Some Optical 

 Properties of Selenium: A. Metallic Reflection 

 Phenomena ; B. Reflecting Power.' 



John Gale Hun : ' The Invariant Relations of 

 Two Triangles.' 



Albert Johannsen: 'The Serpentines of Har- 

 ford County, ^laryland.' 



George Wiles MiddlekaulT: 'Measurements of 

 Certain Wave-lengths in the Spark-spectra of 

 Iron and Titanium, Together with a Study of 

 the Possible Influence of Capacity and Self-in- 

 duction in the Spark Circuit.' 



.To.spph Haines Moore: 'The Absorption and 

 Fluorescent Spectra of Sodium Vapor.' 



