*^^ [March 6, 



— is very obvious. The field of investigation is of enormous proportions. 

 Tlie assistance of Prof. Houston and his associate, Dr. Kennelly, is 

 promised in entering on an elaborate series of investigations in this direc- 

 tion. Whatever may be the result, we promise ourselves the pleasure of 

 submitting them at a later period to the attention of the Society. 



I have also here a few photographs of Dr. Henry Cattell ; but as most 

 of them have been published before I do not know whether he would 

 care to show them at present. i 



Mr. Wliarton exhibited a tube contaiuing argon produced 

 by Lord Ea^deigh, which was presented by him to Dr. Theo- 

 dore Wm. Richards, of Harvard University. This tube being 

 arranged for sparking was iutroduced into the current of a 

 Euhmlvorff coil, where it made a tine display of color. 



A number of the members examined this with a spectro- 

 scope provided by Dr. Goodspced, and thus observed very 

 clearly the characteristic lines of aro-ou. 



Stated Meeting, March 6, 1896. 



President, Mr. Fraley, in the Chair, 

 Present,, 24 members. 



!Mr. Henry Pettit, a newl}" elected member, Avas presented 

 and took his seat. 



Correspondence was submitted as follows : 



Letters accepting membership from Dr. A. E. Kennelly, 

 Philadelphia; Prof. William Pitts Mason, Troy, N. Y.; Dr. 

 Henry C. McCook, Philadelphia ; ^Mr. Henry Pettit, Over- 

 brook, Philadelphia. 



Letters of acknowledgment from Prof. A. E. Xordens- 

 kiold, Ph.D., Stockholm, Sweden (l-iS, 146); R. Accademia 

 di Scienze, etc., Modena, Italy (143, 144, 145, 146); Buffalo 

 Library, Buffalo, N. Y. (148); Dr. Albert P. Brubaker, 

 Philadelphia (147, 148) ; Hon. J. D. Cox, Cincinnati, 0. 

 (148) ; Colorado Scientific Society, Denver (148); Bishop 

 Crescendo Carrillo, Merid:i, ^'ucatan (148). 



Accessions to the Library Avere re])orted from the Linncan 

 Society of N. S. Wales, Sydney ; Societe Ilollandaisc des Sci- 



