Febeuabt 10, 1911] 



SCIENCE 



213 



D. Hinds; councillor, E. W. Balcom; secre- 

 tary and treasurer, L. J. Desha. Dr. W. L. 

 Dudley gave an informal talk on the " Action 

 of Wireless Waves on Rarefied Gases." The 

 regular meetings of the section vciU be held 

 on the third Friday of each month. 



Dr. H. W. Wiley, chief chemist of the 

 Department of Agriculture, Washington, D. 

 C, delivered an address at Syracuse Univer- 

 sity on February 1 upon " The Services of 

 Chemistry to the Public Welfare." The 

 meeting was held in the Bowne Hall of chem- 

 istry under the joint auspices of the Syracuse 

 Chapter of Sigma Xi and the Syracuse Sec- 

 tion of the American Chemical Society. 



Professor C. K. Leith, of the University of 

 Wisconsin, gave a lecture before the advanced 

 students in geology at Northwestern Univer- 

 sity on January 26. His subject was a com- 

 parison of the origins of the iron ores of the 

 Lake Superior region, of Cuba and of Brazil. 



A LECTURE on electric oscillations and their 

 application to wireless telephony was delivered 

 before the chapter of Sigma Xi at Purdue 

 University, LaFayette, Ind., January 28, by 

 Professor C. M. Smith, of the department of 

 physics of that university. Professor Smith 

 explained the theory of wireless telegraphy 

 and telephony and pointed out the entirely 

 different conditions necessary for wireless 

 telephony as compared with wireless teleg- 

 raphy. The lecture was illustrated by a large 

 number of experiments showing the analogy 

 between electric and sound waves and was 

 concluded with a demonstration of the sing- 

 ing are lamp which reproduced very clearly a 

 band selection through the agency of a phono- 

 graph and microphone located in a distant 

 room. 



At a meeting of the Eoyal Geographical 

 Society on January 16 Dr. Johan Hjort gave 

 a detailed account of the Michael Sars North 

 Atlantic deep-sea expedition of 1910, which 

 he, with Professor H. H. Grau, Dr. Helland- 

 Hansen, Mr. E. Koefoed and Captain Thor 

 Iversen, undertook at the suggestion and at 

 the expense of Sir John Murray, who himself 

 accompanied them. 



Dr. Hans Grether, of Karlsruhe, Germany, 

 has been appointed a special lecturer in 

 McGill University and is giving in the gradu- 

 ate school, during the present session, a course 

 of advanced instruction in the " Computation 

 of secondary stresses in bridge trusses and 

 other framed structures." The following 

 gentlemen will act as special lecturers in the 

 course on economic geology at McGill Univer- 

 sity during the present session: R. W. Brock, 

 Esq., M.A., director of the Geological Survey 

 of Canada; Dr. J. D. Irving, professor of eco- 

 nomic geology. Tale University, and O. E. 

 LeEoy, Esq., M.Sc, of the Geological Survey 

 of Canada. 



A STATE Biological Survey has been organ- 

 ized at the University of Colorado, the work 

 being in the hands of a committee consisting 

 of Professors F. Ramaley, T. D. A. Cockerell 

 and J. Henderson. The work of such a sur- 

 vey has been carried on for a number of years 

 past, but until now there has been no definite 

 organization. The work includes fossil as 

 well as living species of plants and animals. 



The British Treasury has, on the recom- 

 mendation of the development commissioners, 

 made a grant to the Board of Agriculture and 

 Fisheries from the development fund of £40,- 

 000 for the ensuing year for the encourage- 

 ment of light horse-breeding in Great Britain. 



The third semi-annual meeting of the 

 American Institute of Chemical Engineers 

 will be held at Chicago, Ul., June 21 to 24. 

 Arrangements will be made to visit a number 

 of the large technical plants in the vicinity. 

 The committee on chemical engineering edu- 

 cation and standardization of boiler tests will 

 have important reports to present. The pro- 

 gram of papers will be announced later. 



The first Universal Congress of Races will 

 be held in London from July 26 to 29, 1911, 

 to discuss the general relations between west- 

 ern and eastern peoples. 



A COURSE of nine public lectures on prob- 

 lems of psychology have been given at Co- 

 lumbia University, as follows : 



January 31 — " Traits of Dreams," Professor 0. 

 E. Seashore, University of Iowa. 



