84 INDEX TO THE LITERATURE OF THORIUM. 



1899 : 684. Note. Voelker mantle. 



Progressive Age, 1899, 17, 100-101. 



1899: 685. Note. Concession to John Gordon of Monazite deposit, 

 Brazil, with analyses. 



Progressive Age, 1899, 17, 151. 



1899 : 686. Note. (New mantle by New Incandescent Gas Light Com- 

 pany, with humorous translation of French patent.) 



Gas World, March 11, 1899; Progressive Age, 1899, 17, 151. 



1899:687. Edison. New patent filament. June 6, 1899. 

 Progressive Age, 1899, 17, 301. 



1899: 688. Fuhniss. Brazilian Export Tax on Monazite. 



U. S. Consular Reports, 1899, 59, No. 221, 331-3:32; Progressive Age, 

 1899, 17, 419. 



1899: 689. Note. Discovery of Monazite Sand, Brazil, by Gorceix. 

 Progressive Age, 1899, 17, 441. 



1899: 690. (Composition of Mantles.) 



Invention, 1899, Sept. 2; Progressive Age, 1899, 17. 527. 



1899:691. . Tiie Mineral Industry, New York, 1899 (review). 



Progressive Age, 1900, 18, 287. 



1899:692. Lenher. Rare Elements. 



The Mineral Industry, New York, 1899, 8, 495-506. 



1899 : 693. Furniss. Monazite concession in Brazil. 



U. S. Consular Reports, 1899, 60, No. 224, 143-145; Eng. and Min. 

 Jour., 1899, 67, 409; J. Soc. Chem. Ind., 1899, 413. 



1899: 694. Merrill. Guide to the Study of the Collections in the 

 Section of Applied Geology. 



Annual Report of the Smithsonian Institution for the year ending 

 June 30, 1899. Report of the U. S. National Museum. Part II, 

 pp. 155-183. 



1899: 695. Binder. Das Leuchten der Gliihkorper. 



Ztschr. f. Naturw., 1899, 71, 435-441; Fortschr. Phys., 1899, 55i, 

 225-226. 



1899: 696. Howe. The place of the new constituents of the Atmos- 

 phere in the Periodic System. 



Chem. News, 1899, 80, 74-76; Fortschr. Phys., 1899, SS^, 137-138; 

 Chem. Centrbl.,1899, 70, II, 578; Science Abstracts, 1900, 3, 82. 



1899- 697. Killing. Der weisse Beschlag an Rauchfiingern und Cyl- 

 indern der Gasgliihlicht-Apparate und seine Beziehungen zum 

 GUihkorper und Leuchtgas. 



J. Gasbel., 1899, 42, 841-843 ; J. Soc. Chem. Ind., 1900, 19, 30; Pro- 

 gressive Age, 1900, 17, 17. 



