242 Scientific Intelligence. 
hottest part of the flame and allowed to remain two minutes; the 
alkalies, now converted into sulphates, . the flame more dis- 
tinctly than before, and this effect is duly no 
Professor Szabé gives a general scale of ‘fusibility containing 
eight cegreat from quartz (0) to antimonite (7), and a special 
scale of six grades for the different feldspar species; he distin- 
guishes the character of the fused products in the case of the 
‘ 3 
white or blebby enamel, is obtained; he also gives large colored 
plates exhibiting the inten oe of color, yellow and violet, a 
of sodium and potassium seope tively. By means o of these ba is 
in cer 
ado in a given spar, and thus to determine the species. 
method doubtless requires considerable skill in naatipiiine 
tion, “a also extended experience in the application of the de li- 
cate tests described. The end aimed at, however, is so important 
one—especially in view of the tendency now preva ent to con- 
—that it is wo rthy of much time and labor, and Professor Szab 
deserves the thanks of eae toe for the care and oe 
Ww - which he has worked out his resu 
8. Brief notices of some newly described be onli Voor it 
oceurs as a greenish earthy-looking ‘ ‘clay-or e” in irregular layers 
beabeees :—SiO, 30°73, AlO, 14-67, FeO, FeO 0-29, CuO 
17°58, MgO 18 55, = 20 12°83 = 100. The caniciealeet ratio 5 tbe 
R:#R:Si:H=3:4:6:4, “which puts the mineral, if it be a 
homogeneous subehaes (as its microscopic character indi indi- 
cate) among the chlorites.” (Dr. T. Sterry Hunt, in a pamphlet 
entitled “  Detatiption of a Double Muffle Furnace by pthc’ 
B. Silliman, and A new ore of Copper and its metallurgy, by 
T. Sterry Hunt; Sas ret Dec, 30th, 1876.) 
UVranocireite ‘oceurs in quartzy veins in pt granite of Falken- 
stein, Saxon Voigtland; it has long gone by the name of autunite 
bles. §S 
