9'2 INDISX TO THE LITERATURE OP THORIUM. 



1899: 764. Bolton. An Experimental Study of Radio- Active Sub- 

 stances. (Read before the Chemical Society of Washington, April 

 21, 1900.) 



Report of the Sinitlisonian Institution for year ending June 30, 1899, 

 155-162; J. Am. Cheni. Soc, 1900, 22, 596-604; Beibl. Ann. der 

 Phys., 1901, 25, 1027. 

 1899: 765. Wills and Lierknecht. Moleculare Susceptibilitiit para- 

 magnetischer Salze. 



Verliandl. der Deut. Phys. Ges., 1899, I, 154, 170-173; Beibl. Ann. 

 der Phys., 1899, 23, 111 Lit. Uebers. 



1899 : 766. Hussak and Prior. Florencite, a new hydrated Phosphate 

 of Aluminium and the Cerium Earths, from Brazil. 



Min. Ma<j., 1899, 12, 244-248; J. Chem. Soc. Lond., 1900, 78, 2,601- 

 602; Jahrb. Min., 1900, 93, 1, 359-360; Ztschr. Kryst., 1902,36, 

 165-166; Min. Mitth., 1900, 20, 86 Lit. Notiz ; Am. J. Sci., 1900, 

 [4], 10,404; Nature, 1899, 61, 119; Bull. soc. fran9. min., 1899- 



1900, 23, 234-225; S. of M. Quar., 1902, 23, 297. 



1899: 767. Hamilton. Monazite in Delaware County, Pennsylvania. 

 Proc. Phila. Acad. Nat Sci., 1899, [3J, 29, 377-378; Ztschr. KrysL, 



1901, 206; .Talnb. Min., 1901, 93, I, 200; Bull. U. S. Geol. Survey, 

 172, 41. 



1900: 768. Rutherford. A Radio-active substance emitted from 

 Thorium compounds. 



Phil. Mag., 1900, [5], 49, 1-14; J. Chem. Soc. Lond., 1900, 78, 2, 

 351-352; Naturw. Rundscliau., 1900, 15, 139-140; Ztschr. anorgan. 

 Chem., 1900, 23, 319; J. Phys., 1900, [3], 9, 213-214; Am. J. Sci., 

 1900, [4], 9, 220; Nature, 1901, 64, 157-158 ; Ztschr. physikal. chem. 

 unterricht, 1900, 13, 99-107; Ztschr. physikal. Chem., 1900,34, 

 126; Jahrb. Erfind., 1901, 37, 191-192; Beibl. Ann. der Phys., 1900, 

 24, 582-584; Fortschr. Phys., 1900, 56^, 109 ; Chem. Centrbl., 1900, 

 71, I, 388-389; Science Abstracts, 1900, 3, 239. 



1900: 769. Rutherford. Radio-activity produced in substances b}^ 

 the action of Thorium compounds. 



Phil. Mag., 1900, [5], 49, 161-192; J. Chem. Soc. Lond., 1900, 78, 2, 

 352; J. Soc. Chem. Ind., 1900, 19, 558-559 ; Ztschr. anorgan. Chem., 

 1900, 23, 467; J. Phys., 190u, [3], 9, 411-412; Ztschr. physikaL 

 chem. unterricht, 1900, 13, 225-231 ; Ztschr. physikal. Chem., 1900, 

 34, 126; Nature, 1901, 64, 157-158; Ztschr. angew.Chem., 1900,389- 

 390; Naturw. Rundschau., 1900, 15, 240-241 ; Phys. Ztschr., 1900, 

 1, 347-348; Jahrb. Erflnd., 1901, 37, 192-194; BeibL Ann. der 

 Phys., 1900, 24, 718-720; 1900, 24, :39 Lit. Uebers ; Fortschr. Pliys., 

 1900, 56', 108-109; Chem. Centrbl., 1900,71,1,706-707; Science 

 Abstracts, 1900, 3, 468-469. 



1900: 770. Nordenskiold. On the Discovery and Occurrence of Min- 

 erals Containing Rare Elements. 



Quarterly Jour. Geol. Soc. London, 1900, 56, 521-530; Phil. Mag., 

 1900, [5], 50, 268; J. Chem. Soc. Lond., 1901,80, 2, 319; Chem. 

 News, 1900, 81, 217-218; Ztschr. Kryst, 1902, 36, 87; Chem. 

 Centrbl., 1900, 71, I, 1.307. 



