1144 
idea at all of the natural appearance of the mineral. For purposs_ 
of determination, and especially for illustrating fine specimens 4 
is probable that photography will, before long, be made use ol 
A complete set of photographs of typical specimens would be 
highly valued by mineralogists. 
SZABOITE.— In 1878 Professor A. Koch published a description | 
\ of a Transylvania mineral which, occurring in minute, thin tabs 
crystals in cavities in andesite, he named szadotfe, m wr 
Professor J. Szabó, of Budapest. The mineral was described® 
triclinic, and as related in composition to babingtonite. | 
. A. Krenner, of Budapest, has recently published an extended ae | 
article! on szaboite, in which he comes to the conclusion 
identical with those of hypersthene. The hardness Professor : 
gravity are also similar. Chemically it appea fey? the io, 
Koch was both mistaken as to the state of oxide ought, | 
the iron existing as protoxide, not sesquioxide, as centage 9 
and also that his analysis failed to give the a 
magnesia. 
hypersthene, and may replace one another, it is held that ‘a 
question is as to the precise variety of hypersthene m 
szaboite belongs. -a Minera 
Mrineravocicat Norrs.—A Text-book of Des ne (Lor 
ogy, by Hilary Bauermann, of the Royal School of his Tet 
don), has just been issued as a companion volume Nature 
book of Systematic Mineralogy, already noticed in the © ae 
Ist. The present volume is a concise presentation fe to the class 
ters of all the principal minerals, and will be valuab ie jour 
for which it is intended. Am amateur miners a 
published monthly “in the interest of mineralogists ® Miner 
tors of antiquities of all kinds,” and entitled The Young The e&t 
ogist and Antiquarian, has reached its second number: < 
1 Zeitsch. für Kryst., ıx Band, 3 Heft, 254. 
