LETTER OF TRANSMITTAL 



Washington-, May 10th, 1899. 



The Committee on Indexing Chemical Literature, appointed in 1882 

 by the American Association for the Advancement of Science, unani- 

 mously recommends for publication by the Smithsonian Institution the 

 following : 



Index to the Literature of Zirconium, 



by A. C. Langmuir, Ph.D., and Charles Baskerville, Ph.D. 



H. Carrington Bolton, 



Chairman. 



Mr. S. p. Langley, 



Secretary of the Smithsonian Institution. 



