238 



SCIENCE 



[N. S. Vol. XXXII. No. 816 



Harold Smith Osborne : " An Investigation of 

 the Potential Stress in Dielectrics." 



Richard Chace Tolman : " The Electromotive 

 Force produced in Solutions by Centrifugal Ac- 

 tion." 



BBYN MAWR COLLEGE 



Alice Middleton Boring: "A Study of the 

 Spermatogenesis of Twenty-two Species of the 

 Membracidse, JassidiB, Cercopidie and FulgoridaB." 



Grace Potter Reynolds : " The Reaction between 

 Organic Magnesium Compounds and Unsaturated 

 Compounds containing Alkoxyl Groups." 



UNIVEESITY OF IOWA 



Albert Kuntz : " The Development of the Sym- 

 pathetic Nervous System of the Mammalia." 



Lee Paul Sieg: "Peculiarities in the Elastic 

 Properties of Certain Wires." 



UNIVEBSITT OP MISSOUEI 



Charles Kenworthy Francis : " Phosphorus in 

 Beef Animals." 



Louis Lazarus Silverman : " On various Defini- 

 tions of the Sum of a Divergent Series." 



NEW YORK UNIVEBSITY 



Patrick J. O'Donnell: "The Role of Attention 

 and Habit in the Determination of Social Mind 

 and Corporate Life." 



John Paul Simmons : " Isomerisms in the Cobalt 

 Ammines." 



PRINCETON DNIVERSriY 



Howard Hawks Mitchell : " The Subgroups of 

 the Linear Group LF{3, p")." 



Ulysses Grant Mitchell : " Geometry and Col- 

 lineation Groups of the Plane PG(2, 2')." 



BROWN UNIVEBSITY 



Henry Carroll Tracy : " The Morphology of the 

 Swimbladder in Teleosts." 



UNIVERSITY OF CINCINNATI 



Elliott Smith : " Personal Equation and its 

 Variation." 



UNIVERSITY OF MICHIGAN 



Harvey Lincoln Curtis : " Mica Condensers as 

 Standards of Capacity." 



UNH'EBSITY OF MINNESOTA 



Hal. Downey : " The Lymphatic Tissue of the 

 Kidney of Polyodon spathtda." 



UNIVERSITY OF NEBRASKA 



Franklin Davis Barker: "The Trematode Genus 

 Phisthorcis Blanchard." 



UNIVEBSITY OF PITTSBUBGH 



Robert Horace Baker : " The Spectroscopic Bi- 

 nary, Beta Aurigse." 



STANFOBD UNIVERSITY 



Solon Shedd : " The Clays and Clay Industry of 

 Washington." 



SYRACUSE UNIVERSITY 



Floyd Fiske Decker: "On the Order of a Re- 

 stricted System of Equations.'' 



SCIEXTIFIC NOTES AND NEWS 



On the occasion of the celebration of the 

 seventieth birthday of Dr. Hermann Wagner, 

 professor of geography at Gottingen, his bust 

 was presented to the Hall of Fame of the 

 university by his students and friends. 



Dr. Albrecht Penck, professor of geog- 

 raphy at Berlin, has celebrated the twenty- 

 fifth anniversary of his professorship. 



Dr. Julius Hann, professor of eosmical 

 physics at Vienna, has retired from the active 

 duties of his chair. 



Dr. Oskar von Hertwig, professor of zo- 

 ology at Munich, has been elected rector of 

 the university for the next academic year. 



The Paris Academy of Sciences has awarded 

 the " Fondation Leconte," a prize of 2,500 

 francs, to Mr. A. R. Hinks, of Cambridge 

 Observatory, for his astronomical researches. 



The Observatory says that English men of 

 science will rejoice in the election of two more 

 Englishmen — Sir William Eamsay and Sir 

 E. Ray Lankester — into the select body of 

 twelve foreign associates of the Paris Acad- 

 emy of Sciences. There were only eight for- 

 eign associates of the academy until Decem- 

 ber of last year, when the number was increased 

 to twelve. Of the eight associates on the list 

 last year, two were Americans, namely. New- 

 comb and Agassiz; but it appears that no 

 Americans have been found to fill the places 

 left vacant by their deaths. There is at pres- 

 ent one vacancy to be filled, the eleven associ- 



