April, 1916] News and Notes 247 



The temperature coefficients of the resistance here recorded are 

 somewhat larger than those found by Erhard for indium and by 

 Dewar and Fleming for thaUium. The former working between 

 • — 5.4° C. and 96° C. gives for the temperature coefficient of 

 indium 4.77 x 10~^ the latter working between 0° and 100° 

 gives for the temperature coefficient of thallium 3.98 x 10~^ 

 These discrepancies are probably due to impurities and to 

 mechanical treatment of the specimens. 



I wish to express my thanks to the Rumford Committee 

 which bore part of the expense of this investigation. 



Physical Laboratory, Ohio State University. 



NEWS AND NOTES. 



The Ohio Academy of Science. The Annual Meeting of 

 the Ohio Academy of Science was held on April 21st and 22d 

 at the Ohio State University. The general meetings were 

 held in the Botany-Zoology Building. This is the first meeting 

 after the adoption of the new plan to meet in the spring. 



The Lake Laboratory. Plans for a successful session of 

 the Lake Laboratory at Cedar Point next summer are rapidly 

 maturing. It has been unofficially announced that a number 

 of improvements to the building and to the sanitary arrange- 

 ments will probably be made which will increase the efficiency 

 of the laboratory and will also make for greater comfort in the 

 living conditions. 



The bulletin for 1916 has recently been issued. The session 

 will begin on June 19 and will continue until July 28. As usual 

 those desiring to spend a longer time at the laboratory are at 

 liberty to do so. Director Osborn will be away on leave of 

 absence this summer. The acting director will be Dr. F. H. 

 Krecker of the Department of Zoology and Entomology at 

 Ohio State University. Other changes on the staff include the 

 appointment of Professor Schaffner of the Department of 

 Botany at Ohio State University, and of Prof. Z. P. Metcalf, of 

 North CaroHna A. and M. College. Prof. Metcalf will conduct 



