ANNOUNCEMENT. 



This paper on a " New Method for Determining Compressibility " 

 has been prepared by Professor Theodore W. Richards, Ph.D., Pro- 

 fessor of Chemistry in Harvard University, and his assistant, Wilfred 

 N. Stull, S.M. (Iowa University), Edward Austin Fellow of Harvard 

 University. Its publication by the Carnegie Institution is recommended 

 by these chemists : Professors Ira Remsen, of the Johns Hopkins Uni- 

 versity ; F. W. Clarke, of the United States Geological Survey, and 

 Edgar F. Smith, of the John Harrison Laboratory in the University 

 of Pennsylvania. 



This investigation was made in the Chemical Laboratory of Harvard 

 College, Cambridge, Massachusetts, and the expense of it was de- 

 frayed, in the earlier part, by the Cyrus M. Warren fund of Harvard 

 University, and in the latter part, by the Carnegie Institution of Wash- 

 ington. Daniel C. Gilman, 



President of the Carnegie Institution. 



in 



