604 



SCIENCE. 



[N. S. Vol. XX. No. 514. 



to the thyreoid and thymus glands, and the 

 difficult morphology of the coelom and peri- 

 toneum is dismissed with little more than a 

 page and a half of actual reading matter. 



In the review of the first part of the ' Lehr- 

 buoh ' attention was called to the exception- 

 ally numerous and gross typographical errors 

 it contained. Two pages of errata contained 

 in the first part form an introduction to the 

 second part, and aroused hopes that due care 

 had been taken that the latter should be 

 tolerably free from errors of this sort. The 

 hopes, however, were vain. Although the 

 errors are less numerous and striking than in 

 the earlier part yet they are sufficiently 

 abundant to cause surprise. They are, as 

 before, most frequent in connection with the 

 proper names, but one must needs rub one's 

 eyes and look again when one reads of the 

 lamina scribosa of the ethmoid or of the 

 hetopapancreas. J. P. McM. 



SOCIETIES AND ACADEMIES. 



THE SAN FRANCISCO SECTION OP THE AMERICAN 

 MATHEMATICAL SOCIETY. 



The sixth regular meeting of the San 

 Francisco Section of the American Mathe- 

 matical Society was held at the TJniversty 

 of California on October 1, 1904. Fifteen 

 members of the society were present. A num- 

 ber of other teachers of mathematics living in 

 or near San Francisco attended both of the 

 sessions. The following officers were elected 

 for the ensuing year : 



Chairman — Professor Haskell. 

 Secretary — Professor Miller. 

 Program Committee — Professors Haskell, Leh- 

 mer and Miller. ^ 



Major P. A. MacMahon member of the 

 council of the London Mathematical Society, 

 presided during the morning session, and Pro- 

 fessor Irving Stringham during the afternoon 

 session. The following papers were read: 



Peofessoe E. J. WlLCZYNSKl: 'General projec- 

 tive theory of space curves.' 



Professor L. M. Hoskins : ' Stresses in an 

 elastic sphere due to a superficial layer of heavy 

 matter of uniform thickness bounded by a circle.' 



Dr. T. M. Putnam : ' Concerning the factors of 



(jr — 1)° that are of the form pa; + 1, and allied 

 problems.' 



Major P. A. MacMahon : ' Groups of linear 

 differential operators.' 



Professor H. F. Blichfbldt : ' On primitive 

 continuous groups.' 



Professor D. N. Lehmee: ' Figures invariant 

 in space of three dimensions under the most gen- 

 eral projective transformation.' 



Professor G. A. Miller: 'Determination of all 

 the groups of order 2"" which contain an odd 

 number of cyclic subgroups of composite order.' 



The program provided also for a ' Confer- 

 ence on recent investigations in the founda- 

 tions of geometry.' This conference was 

 opened by Professor Stringham, who was fol- 

 lowed by Dr. J. H. McDonald. A number of 

 the high school teachers took part in the dis- 

 cussion, which had reference mainly to the 

 influence of the recent investigations on the 

 teaching of elementary mathematics. The 

 nest meeting will be held at Stanford Univer- 

 sity, o'n February 25, 1905. 



G. ' A. Miller, 

 Secretary of the Section. 



new YORK academy OF SCIENCES. 

 SECTION OF GEOLOGY AND MINERALOGY. 



The section met at the American Museum 

 of Natural History on October 17, 1904, at 

 8 :15 P.M., with Professor James F. Kemp in 

 the chair. 



The special business of the evening was the 

 nomination by the section of officers to serve 

 for the calendar year 1905. The following 

 nominations were made : For chairman and 

 vice-president of the academy, E. O. Hovey, of 

 the American Museum of Natural History; 

 for secretary, A. W. Grabau, of Columbia 

 University. 



The program of the evening consisted of a 

 lecture by E. O. Hovey, on 'St. Vincent, Brit- 

 ish West Indies: The Eruptions of 1902 and 

 their Immediate Results.' 



The author gave a summary account of the 

 results obtained on two expeditions under- 

 taken by him for the American Museum of 

 Natural History in 1902 and 1903, for the 

 study of the volcanic eruptions of the Sou- 

 friere which began in May, 1902. Particular 

 attention was devoted to the heavy coating of 



