48 INDEX TO THE LITERATUEE OF THOKIUM. 



1890, 61, 2, 408-416, 456-462; Jahrb. Min.. 1S92, 75, 1, 238-265, 

 296-307 Ref. ; S. of M. Quar., 1891, 12, 70; Rammelsberg's Min. 

 Chem., 1895, Zweites Suppl., 137-138, 180-181, 303-304, 304-305, 

 305-306, 307, 445, 445-446, 453, 455. 



1890: 340. Hillebrand. Analyses of Samarskite? and an ill-defined 

 Zirconium mineral. 



Ball. U. S. Geol. Survey, 1889-1890, 55, 48-52; Proc. Col. Sci. Soc, 

 1889-1890, 3, 38-47; Jahrb. Min., 1891, 74, 2, 38-40 Ref. ; Ztschr. 

 Kryst., 1891, 19, 638-640; Rammelsberg's Min. Chem., 1895, 

 Zweites Supppl., 167-168. 



1890: 341. Hillebrand. On the occurrence of Nitrogen in Uraninite 

 and on the composition of Uraninite in general. 



Bull. U. S. Geol. Survey, 1891, 78, 43-79; Am. J. Sci., 1890, [3], 40, 

 384-394 ; Chem. News, 1891, 64, 221-222, 230-233, 244-247, 255-257, 

 279-281, 290-293, 302-304; Berg. u. H. Ztg., 1891, 50, n. s. 45, 19; 

 Chem. Ztg., Repert. 1890, 14, 344; Ztschr. Kryst., 1892, 20, 479- 

 484; Giorn. Min , 1890, I, 337; S. of M. Quar., 1891, 12, 173; Ram- 

 melsberg's Min. Chem., 1895, Zweites Suppl., 67-74; Chem.Centrbl., 

 1890, 61, 2, 96S-970; Jab. Chem., 1891, 419-420. 



1890 : 342. DEMARgAY, Les terres rares. 

 Revue Gen. des Sci., 1890, 396-402. 



1890 : 343. Eakins. Analysis of Gadolinite. 



Bull. U. S. Geol. Survey, 1890, 64, 40; Ztschr. Kryst., 1891, 19, 86, 

 89; 1892, 20, 499-500; Chem. News, 1893, 67, 79. 



1890 : 344. Hidden and Mackintosh. On the occurrence of Pol ycrase 

 or of an allied species in both North and South Carolina. 



Am. J. Sci., 1890, [3], 39, 302-306; Bull. soc. frang. min., 1890, 13, 

 393; Giorn. Min., 1890, I, 184, 333; Chem. Centrbl., 1890, II, 261- 

 262; Rammelsberg's Min. Chem., 1895, Zweites Suppl., 177-178. 



1890: 345. Ge< t Allanite. 



Am. J. Sci., 1890, [3], 40, 118; Jahrb. Min., 1893, 2, 459-461 Ref. ' 

 Ztschr. Kryst.. 1892, 20, 472-475 ; Chem. Centrbl. , 1890, II, 462-464 ; 

 Rammelsberg's Min. Chem., 1895, Zweites Suppl., 255-256. 



1890 : 346. Bakhuis Roozeboom. Sur Les Relations entre le sulfate 

 thorique anhydre et ses hydrates, et sur les phenomenes de ra- 

 lentissement dans I'hydratation et la deshydratation de ce sel. 



Holland.sche maatschappij der wetenschappen te Haarlem; Archives 

 neerlandaises des sciences exactes et naturelles, 1890, 24, 233-257 ; 

 Ztschr. physikal Chem., 1889-1890, 5, 198-216; Chem. News, 1891, 

 273; Ostwald, On Solutions, pp. 75-77; Chem. Centrbl., 1890, I, 

 990; Jsb. Chem., 1890, I, 230-231. 



1891 : 347. Clarke. Table of atomic weights, issued December 6, 1890. 

 Chem. News, 1891, 63, 76-77; Ztschr. physikal Chem., 1891, 8, 235- 

 236; Fortschr. Phys., 1891, 47, 1-2, 66-67; J. anal. Chem., 1891, 

 54-55; Jsb. Chem., 1891, 79. 



