INDEXES TO THE LITERATURES OF CERIUM 

 AND LANTHANUM. 



By W. H. MAGEE, Ph. D. 



INTRODUCTION. 



The following indexes to the literatures of cerium and lanthanum 

 were prepared during the course of some work on the former element. 

 They are not offered as being absolutely correct, but all the more im- 

 portant articles bearing upon the elements are certainly indexed, and 

 usually the original article heads the list. In some few cases, how- 

 ever, it was difficult to determine the original. Whenever the journal 

 was to be found on the library shelves the references were verified. 

 No single library, however, contains all the journals to which references 

 will be found. 



That the indexing of chemical literature is of great and growing im- 

 portance is evident ; that the work should be as nearly perfect as 

 possible is equally true. Yet few except those who have attempted 

 the task realize the difficulty and labor involved. I would ask, there- 

 fore, as regards these indexes, that any one using them, and all chem- 

 ists interested in the study of cerium and lanthanum, should send cor- 

 rections and addenda to W. H. Magee, care of Professor L. M. Dennis, 

 Cornell University, Ithaca, N. Y., so that after a few years perfectly 

 correct indexes may be prepared. 



The Indexes are arranged on the same plan as that of the Index to 

 Uranium, published by Dr. H. Carrington Bolton in 1870, and followed 

 by several other chemists. The abbreviations used are in the main 

 those of the standard list printed in Bolton's Bibliography of Chem- 

 istry. 



Cornell University, 

 Ithaca, N. Y., July 21, 1894. 



