1008 i The American Naturalist. [November, 
sang’s experimentson the crystallization of sulphur from its solution in 
carbon bisulphide thickened with balsam, and has discovered thereby 
some new facts regarding the phenomena connected with the formation 
of crystals. He finds the globulites aggregating into liquid spherules 
of sulphur that may remain liquid for several days. Grains of sulphur 
that are melted on a glass plate may also remain in a liquid condition 
for a long time—in some instances, three months—before they solidify. 
Upon agitation with the point of a needle they immediately become 
solid. The author declares that there is no tendency among the globu- 
lites to arrange themselves into definite groups, as Vogelsang reported 
to be the case. In the largest drops, however, they may take definite 
positions, whereupon the entire drop may be made to crystallize by 
shaking or agitating with a needle point. The formation of crystall- 
ites is contemporaneous with that of the globulites, the latter giving 
rise to the large drops, which, upon soldifying, become spherulites, and 
the former growing into microlites by the accretion of invisible parti- 
cles. The crystallites do not grow by the addition of globulites. 
These bodies add themselves to the large drops, and never to the small, 
solid embryo crystals. 
Miscellaneous.—A couple of slags from the lead ovens of Raibl, 
Austria, have been examined chemically by Heberdey.^ The compo- 
sition of different ‘portions of the various specimens were carefully 
worked out. In one specimen crystals of a lead-zine olivine were 
found, the analysis of which yielded : 
BL EPO. 200. MaO Fel GO Total 
16.62 61.50 18.16 1.99 1.69 tr — 99.96 
Their density is 5.214 and axial ratio a : b = .8592 : 1. In an appen- 
dix to his main article the author gives the results of analyses of the 
limestone in which the galena smelted in the furnace occurs. One of 
these ais yielded: CaCO, = 53.50; MgCO, — 46.51; Fe, TI, Li 
Sneaks and Whitlock” ltl Its of an analysis of 
a black soil from a point in the qae of the Red River of the North, 
about fifteen miles south of Winnipeg, Manitoba, and Corse and 
Baskerville” the results of analyses of glauconite sand from near Han- 
ion z miner. Inst. d. Univ. Kiel. B 1. H. 4., p. 310. 
f. Kryst., xxi, 1892, 
eee Chem. Journal, 14, 1892, p. 621. 
= ib. o o 
