232 



SCIENCE. 



[N. S. Vol. XVII. No. 423. 



with various invertebrates, saying ttat he 

 had found the lowest rate, 44 om. per second, 

 in a species of Idmax, and the highest, 424 cm. 

 per second in a squid; this rate was subject to 

 very considerable individual variation. 



Incidentally he noted that the collection of 

 marine invertebrates showed a large number 

 of new species of marine worms, and that the 

 coast of California would probably prove a 

 good collecting ground. F. A. Lucas. 



MEETING OF THE SAN FRANCISCO SECTION OF THE 

 AMERICAN MATHEMATICAL SOCIETY. 



A REGULAR meeting of the San Francisco 

 Section of the American Mathematical So- 

 ciety was held at the University of California 

 on December 20, 1902. Sixteen members of 

 the society were present. By an amendment 

 of the by-laws the name of section was 

 changed from Pacific to San Francisco. The 

 following papers were read: 



Professor E. E. Allakdice: 'On a system of 

 similar conies through three points and its trans- 

 formation group.', 



Pbofessob H. F. Blichfeldt : ' On a property of 

 conic sections.' 



Pbofessob L. E. Dickson : ' Generational rela- 

 tions for the abstract group G simply isomorphic 

 with the linear fractional group in the Galois field 

 of order p".' 



Pbofessob L. M. Hoskins: 'A simple method 

 of determining the free nutation of a yielding 

 spheroid.' 



Db. D. N. Lehmeb : ' On the parametric repre- 

 sentation of the tetrahedroid surface.' 



Pbofessob A. O. Leuschnee: 'Elimination of 

 aberration and parallax in calculating prelim- 

 inary orbits.' 



Mb. W. a. Manning: 'The positive primitive 

 substitution groups of class 2p, p being any prime.' 



Pbofessob G. A. Milleb : ' On the holomorph 

 of a cyclic group.' 



Db. C. A. Noble : ' A problem in relative 

 minima.' 



Dr. S. D. Townlet: 'The probability of col- 

 lisions amongst the stars.' 



Pbofessob E. J. Wilczynski : ' On a certain 

 congruence associated with a given ruled surface.' 



The paper by Professor Dickson was pre- 

 sented by the secretary. In the absence of 

 Professor Leuschner his paper was read by 

 title. The other papers were presented by 



their authors. The next meeting of the sec- 

 tion will be held at Stanford University in 

 May, 1903. G. A. Miller, 



Secretary. 



CORNELL SECTION OF THE AMERICAN CHEMICAL 

 SOCIETY. 



The Cornell Section of the American 

 Chemical Society was organized in December 

 last, and has now received its charter from 

 the national organization. The territory em- 

 braced by the section is that lying within a 

 radius of ten miles from Cornell University, 

 Ithaca, N. Y., with headquarters at the uni- 

 versity. At the time of organization there 

 were twenty-four members of the American 

 Chemical Society who became charter mem- 

 bers of the Cornell section. Since then the 

 membership has increased to forty-four. 



The officers for the current year are: 



President — Professor L. M. Dennis. 



Vice-President — Professor W^. D. Bancroft. 



Secretary-Treasurer — ^Mr. W. C. Geer. 



Executive Committee — ^Messrs. Dennis, Ban- 

 croft and Geer, ex officio, Professor W. E,. Orn- 

 dorflF, Mr. J. E. Teeple and Mr. J. G. O'Neill. 



Councilor from Cornell Section — L. M. Dennis. 



Counoilor ex officio — G. C. Caldwell. 



The meetings of the section are to be held 

 monthly in Morse Hall, Cornell University. 

 The evenings will be occupied largely with 

 original papers read by members of the so- 

 ciety, but it is planned to vary the meetings 

 with occasional lectures or addresses by men 

 well known for work in special fields. Thus 

 in the course of the year there will be inter- 

 spersed with the original papers, addresses on 

 subjects of technical importance and on the 

 more chemical phases of allied sciences. By 

 this means the society will conserve all the 

 fundamental aims of the American Chemical 

 Society, as well as aid in broadening the hori- 

 zon of the members of the section by keeping 

 them in touch with the progress of those 

 sciences which so frequently extend into the 

 fields of chemical research. 



The first meeting was held on the evening 

 of December 15. Papers which presented 

 the results of original work done in the chem- 

 ical department were read and discussed. 

 Mr. E. S. Shepherd read a paper on the 



