342 



SCIENCE 



[N. S. Vol. L. No. 1293 



fully study the smaller animal life along 

 certain routes of the Stikine Eiver region. 

 Extensive collections are said to have been 

 made at points heretofore not visited by any 

 naturalist. 



It is planned later to publish a report based 

 on this material with the field notes written 

 diiring the summer months. Such a publica- 

 tion will be in the nature of a continuation of 

 other reports based on previous explorations 

 of the museum some years ago covering in- 

 vestigation of the animal life of the north- 

 west coast of N"orth America. Previous trips 

 have covered much of the mainland and most 

 of the islands off the coast of southeastern 

 Alaska. 



Miss Annie M. Alexander, founder of the 

 Museum of Vertebrate Zoology of the Uni- 

 versity of California, made possible this year's 

 work as well as past years' investigations. 



JOINT MEETING OF THE AMERICAN PHYSICAL 

 SOCIETY WITH THE AMERICAN INSTI- 

 TUTE OF ELECTRICAL ENGINEERS 



A JOINT meeting of the American Physical 

 Society and the American Institute of Elec- 

 trical Engineers, arranged by the Committee 

 on Technical Physios, will be held in Phila- 

 delphia, at the Bellevue-Stratford Hotel, on 

 Eriday and Saturday, October 10 and 11, 1919. 



The Technical sessions on Eriday will be 

 Jield in the Clover Room of the Bellevue- 

 Stratford and the subscription dinner Eriday 

 evening in the Stratford Room. The technical 

 sessions on Saturday will be held at the works 

 of the Leeds and Northrup Company, where a 

 complimentary luncheon will be served by the 

 company. 



The program is as follows: 



FEIDATj 9:00 A.M. 



Session of the Physical Society 

 Atomic structure, papers by P. W. Bridgeman, of 

 Harvard University, and by Irving Langmuir, 

 of the Research Laboratory of the General Elec- 

 tric Company. There will be a formal discus- 

 sion by Saul Dushman. and others. 



rEmAT, 2:30 p.m. 



Session of the A. I. E. E. 



1. The arrangement of atoms in metals, by A. W. 



! Hull, of the General Electric Research Labor- 



atory. An X-ray study of crystal structures, 

 illustrated with models of crystals. 



2. Th-e oscillating vacuum tuie as a generator of 



electrical power, by J. H. Morecroft and H. 

 T. Eriis, both of Columbia University. Lan- 

 tern slides of oscillograph records. 



3. Electromagnetic induction, by J. S. Barnett, of 



the Department of Terrestrial Magnetism, 

 Carnegie Institution. 



4. Fiezo-electrical effect, by A. M. Nichols, of the 



Western Electric Company. (Demonstration.) 



FEmAY, 6:00 p.m. 

 Suisoription Dinner 

 ' Five minute talks by the presidents of the two 

 societies. 



FEIDAY, 8:00 P.M. 



Technical papers by H. A. Bumstead, of Yale 

 University, and J. J. Carty, Vice-president of the 

 American Telephone and Telegraph Company. 



SATUEDAT MOENING 



Session of the Physical Society 

 Inspection of the Leeds and Northrup labora- 

 tories. 



Several semi-technical papers wiU be presented 

 by the physicists of the Research Laboratories of 

 the Leeds and Northrup Company. 



SATUEDAT NOON 



Complimentary luncheon by the Leeds and 

 Northrup Company. 



Automobile ride around Germantown. 



SATUEDAT APTEENOON 



' A regular session of the Physical Society wiU be 

 held on Saturday afternoon in the auditorium of 

 the Leeds and Northrup Company, for the reading 

 of miscellaneous papers. Members wishing to pre- 

 sent papers should send abstracts, ready for pub- 

 lication, to the secretary at once. Probably the 

 program for this session will not be ready for dis- 

 tribution in advance of the meeting. 



There will probably be opportunity for technical 

 excursions to the Welsbaeh factory or a steamer 

 ride on the Delaware River to Chester at 10:30 

 Friday morning. The steamer ride will be avail- 

 able Saturday morning also. 



Other meetings of the American Physical 

 ,Society will be held in Chicago on November 

 28 and 29, and in St. Louis in the week of De- 

 cember 29 to January 3. Members are urged 



