10(1 INDEX TO THE LITERATURE OF THORIUM. 



15)00: 830. Love. The Theory of the Incandescent Gas Light. (A 

 lecture delivered by Dr. E. G. Love, official gas examiner for the 

 city of New York, at the 28th annual meeting of the American 

 Gas Light Association, Denver, Col., October 17 to 20.) 



Am. Gas Light J., 1900, 73, 728-729; Progressive Age, 1900, 18, 

 510-511. 



1900 : 831. Du Bois. Proprietes magnetiques de la matiere ponderable. 

 Kapports presentesau Congres International de Physique, Paris, 1900, 

 2, 460-508. 



1900: 832. C. E. C. Notes on Polonium and Radium. 

 Am. Chem. J., 1900, 23, 262-265. 



1900: 833. Notice. Les metaux rares. 



L'Eclio des Mines, 1900; Cosmos, 1900, [4], 43, S86. 



1900: 834. Richards. A Table of Atomic Weights of Seventy-four 

 Elements, compiled in April, 1900, from the most Recent Data. 



Proc. Am. Acad. Arts and Sci., 1899-1900, 35, 621; Ztschr. physikal. 

 Chem., 1901, 36, 624; J. Am. Chem. Soc, 1900, 22, in Review of 

 Am. Chem. Research, 1900, 6, 144. 



1900 : 835. Lenher. Rare Elements. 



The Mineral Industry, New York, 1900, 9, 568-584 ; Progressive Age, 

 1901, 19, 353, 



1900: 836. De Marsy. La Lumiere Noire et les formes ultimes de la 

 matiere. 



La Nature, 1900, 55, 1-3; Beibl. Ann. der Phys., 1900, 24, 851; 

 Fortschr. Phys., 1900, 56% 650-651. 



1900 : 837. Giesel. Ueber radio-active Stoffe. 



Ber., 1900, 33, 3569-3571 ; Chem. News, 1901, 83, 122-123 ; Ztschr. 

 anorgan. Chem., 1900, 27, 316; Bull. soc. chim. Paris, 1901, [3], 26, 

 129; J. Chem. Soc. Lond., 1900, 78, 2, 19-20; 1901,80, 2, 99; Ztschr. 

 angew. Chem., 1901, 14, 227-228; Naturw. Rundschau, 1900, 15, 

 103; Beibl. Ann. der Phys., 1901, 25, 317; 1901, 25,22, 59 Lit. 

 Uebers; Fortschr. Phys., 1900. 56=, 124; Chem. Centrbl., 1901, 72, 

 I, 355; Science Abstracts, 1901, 4, 839. 



1900: 838. Ephraim. Die Vorschliige zur Reform des Pa tentgesetzes, 

 Ztschr. angew. Chem., 1900, 13, 457-463. 



1900: 839. Erdmann. Der siebente Jahresbericht der amerikanischen 

 Commission fiir Atomgewichte. 



Ztschr. angew. Chem., 1900. 13, 463-464. 



1900 : 840. Note. Zur Lage des Thoriummarktes. 

 Ztschr. angew. Chem., 1900, 13, 122. 



