LETTER OF TRANSMITTAL. 



Washington, January IStli, 1897. 



The Committee of the American Association for the Advancement of 

 Science having charge of Indexing Chemical Literatm-e has voted to 

 recommend to the Smithsonian Institution for publication the following: 

 "A Bibliography of the Metals of the Platinum Group, 1748-1896," 

 by Prof. Jas. Lewis Howe, M. D., Ph. D. 



H. CAEEINGTON BOLTON, Chairman. 



Mr. S. p. Langley, 



Secretary of the Smithsonian Institution. 



