ixi)i;.\ lo TiiK i.i'ii:i;ATri;i': oi' TiioiMiNr. 115 



1901: 993. Cii-:nts(;ii. CJliilikiirper liir (ias<,^liililiclit, (Jescliichte und 

 Weseii (book). 



J. Gasbel., 1901,44, 940. 

 1901 : 994. . Monazite. 



The Mineral Industry, New York, 1901, 10, 402. 

 1901 : 99"). Hknning. Uber radioaktive Substanzen. 



Inaugural Dissertation, Vereinigten Friedrichs-Universitat Halle- 

 Wittenlierg, 1901, pp. 1-41, f 3 tafeln. 



1901 : 996. Koppkl. Die Chemie des Tlioriums. (A review ])y Witt.) 

 Saniiulung Chemischer und clieniisch-tec-hnisclier Yortrilge, 1901, 

 VI Bd., :>0:5-:{14 ; Die Clieniisflie Industrie, 1901, 24, ()04. 



1901: 997. SANrrpn. 



Inaugural Dissertation, Berlin, 1901. 



1901 : 998, Schilling. Beitriige zur Chemie des Thoriums. 



Inaugural Dissertation, Ruprecht-Karls-Universitiit, Heidelberg, 1901, 

 pp. 150. 



1901:999. Lknuer. The Rare Elements. 



The Mineral Industry, New York, 1901, 10, .5G2-r)75. 



1901 : 1000. Harkis. The Mathematical Expression of the Periodic 

 Law. 



.1. Phys. Cheni., 1901, 5, 577-580; C'heni. Centrl)l., 190L', 73, I, 104. 



1901 : 1001. Wells. Doul)le halides. Cieneralizations on Double 

 Halogen Salts. 



Am. Cheni. J., 1901, 26, .S89-40S: Ztschr. pliysikal. Ciiem., 1902, 41, 

 372-.']73. 



1901 : 1002. Bagard. Les rayons de Becquerel et de Curie. 

 Bull. Soc. Ind. Mulhouse, 1901, 71, 109-120. 



1901: 100-3. Delaunay. Poids atomi(iues des corj^s simples. 

 La Nature, 1901, 56, 102. 



1901 : 1004. Drossbach. Vert'ahren zur Herstellung von (Jhibkiiri^ern 

 durcli Verwendung hoher oxydierter Thoriumssalze. 



Ztschr. Beleucht, 1901, 7, 130; Progressive Age, 1901, 19, 207. 



1901: 1005. Knoffleh. Verfahren zur Herstellung von Gluhkiirpern. 

 Ztschr. Beleucht., 1901, 7, 1.59; Progressive Age, 1901, 19,227. 



1901 : lOOG. Note. Incandescent mantles. 

 Progressive Age, 1901, 19, 155-150. 



1901: 1007. Mason. Improvement in Welsbach Lights. 



U. S. Consular Reports, 1901, 66, No. 249, 202-205; .1. Aiu. Cheni. 

 Soc, 1901, 23, in Review of Am. Chem, Research, 1901, 7, 1S1-1S2. 



