24 
Wasium, discovered by Bahr, in 1862. (Poge. Ann, 
CXIX. 572; Journ. pr. Ch., XCL 316.) 
NAMELESS EARTH of the Calcium group, Dupré, 1861. 
NAMELESS METAL of Platinum group, Chandler, 1862. 
(Am. J. Sci., (2) XX XTIT) 
JARGONIUM; under this head are collected the various 
oxides supposed to accompany Zirconia; it appears that six 
chemists have independently suspected the compound nature 
of Zirconia, as follows: 
(1) Noriwm in 1845, by Svanberg. 
(2) Nameless earth in 1854, “ Sjderen. 
(3) Nameless earth in 1864, ‘“ Nylander. 
(4) Migrium in.-1866, _ 4) Church: 
(5) Jargonium in, 1869, “AiSerby: 
(6) Nameless earth in 1869, “ Loew. 
The references are as follows: 
(1) Berz. Jahresb, XXV. Journ. pr. Chem., LVIL and 
XGVIL,. ),Journ. apr (Ch, LV: rand LVI. .@) ae 
Univers. Lundensis, 1864. (4) Chem. News, 1869. (5) Idem. 
(6) Annals. N. Y. Lye. Nat. Hist., DX. 211. 
Summing up all the reactions, by which these unknown 
Oxides are distinguished from Zirconia, we have the following 
table. 
(1) Great variation in atomic weight of Oxide, Svanberg. 
(2) Solubility of Oxide in Oxalic Acid, 
Svanberg, Sjdgren, Loew: 
(8) Solubility of Chloride in Hydrochloric Acid, 
Svanberg & Forbes. 
(4) Precipitation by Ferrocyanide of Potassium, Sjogren. 
(5) Insolubility of Tartrate in Tartarie Acid, Forbes. 
- (6) Solubility of double Potassium Sulphates, Nylander. 
(7) Variation in nature of Sulphates, Loew. 
(8) High. Sp. Gr. of Oxide (55 instead of 4:3), Sjogren. 
(9) Black absorption bands of spectrum, Church, Sorby. 
(2) Some misapprehension exists on the second point, owing 
to the fact that most text books state that Zirconia is insoluble 
in Oxalic Acid, whereas, Berlin, in 1858, showed on the con- 
