1038 



SCIENCE. 



[N. S. Vol. XVI. No. 417. 



many species develop rapidly. Psorophora 

 and Concliyliates may reacli maturity in five 

 or six days after hatching. 



The above is based upon observation made 

 upon as many as nineteen species. 



J. W. DUPREE, 



H. A. Morgan. 

 LoiirsiANA State University, 

 Baton Rouge. 



TEE CONVOCATION OF SCIENTIFIC 

 SOCIETIES. 

 It seems scarcely necessary to call atten- 

 tion once more to the meetings of the Ameri- 

 can Association for the Advancement of Sci- 

 ence, the American Society of Naturalists 

 and the special societies which are about to 

 open their sessions at Washington. "We have 

 published the announcement of the local com- 

 mittee, and there will be found above some 

 details in regard to the meetings of the so- 

 cieties. We have so often laid stress on the 

 supreme importance of our societies as a 

 factor in the advancement and diffusion of 

 science that it is scarcely possible to say 

 more than has already been said. All our 

 readers know that the national scientific 

 societies have hitherto met in two groups — 

 the American Association and its affiliated 

 societies in the summer and the American 

 Society of Naturalists, with most of the so- 

 cieties devoted to the biological sciences, in 

 the winter. These two great groups of sci- 

 entific societies will this year meet together 

 during convocation week at the chief scien- 

 tific center of the country. Under these 

 circumstances the meetings will be the largest 

 and most important ever held on this con- 

 tinent. 



SCIENTIFIC NOTES AND NEWS. 

 Dr. George W. Hill, of Nyack, N. T., and 

 Professor A. A. Michelson, of the University 

 of Chicago, have been elected foreign mem- 

 bers of the Eoyal Society. The other foreign 



members elected at the recent annual meet- 

 ing are: Professor W. 0. Brogger, Professor 

 Gastou Darbous, Professor Ewald liering, 

 Baron Ferdinand von Richthofen, Graf H. 

 zu Solms-Laubach and Professor Julius 

 Thomson. 



M. Deslandres, of the astrophysical ob- 

 servatory at Meudon, has been elected a mem- 

 ber of the Paris Academy of Sciences in suc- 

 cession to the late M. Faye. 



Sir JIichael Foster has offered his resig- 

 nation as member of parliament for the Uni- 

 versity of London. 



Sir Olivee Lodge has been appointed the 

 next Eomanes lecturer at Oxford University. 



The German Emperor has conferred the 

 Eoyal Order of the Crown of Prussia, third 

 class, upon Mr. A. Lawrence Eotch, founder 

 and director of the Blue Hill Observatory, 

 in recognition of his participation in the in- 

 ternational work of exploring the atmosphere. 



The subject for the annual discussion be- 

 fore the American Society of Naturalists, 

 which will be held on the afternoon of Jan- 

 uary 1, is ' How can Endowments be used 

 most Effectively for Scientific Eesearch?' The 

 speakers are Professors T. C. Chamberlin, W. 

 H. Welch, W. M. Wheeler, Franz Boas, J. C. 

 Coulter and Hugo Miiiisterberg. The public 

 lecture will be given on Tuesday evening by 

 Dr. C. Hart Merriam, his subject being ' Pro- 

 tective and Directive Coloration of Animals, 

 especially in Birds and Mammals.' 



Dr. Arthur W. Goodspeed, professor of 

 physics at the University of Pennsylvania, 

 has been elected president of the Eontgen 

 Ray Society. 



Dr. a. H. Smith has been elected president 

 of the New York Academy of Medicine and 

 and Dr. M. Allen Starr, vice-president. 



Dr. Pearce Bailey has been elected presi- 

 dent of the New York Neurological Society. 



Mr. H. C. Russell, F.E.S., is at present 

 president of the Eoyal Society of New South 

 Wales, having succeeded Professor A. Liver- 

 sidge, F.E.S. 



