Mineralogy and Geology. 271 
still continue at intervals; but we are inclined to expect a season 
the way of natural phenomena, in definite prospect earlier than 
the transit of Venus in 1874. e are already promised visits by 
scientific observers upon that occasion. 
eatise on epost ERNHARD von Corra, 
ning Engineer. 594 pp. ; 
trand).—Mr. Prime has done a good thing for all interested in the 
study of ore deposits, in giving us a translation of Van Cotta’s 
“ Erzlagerstiittenlehre.” This book has long been the standard 
? 
mission of the author, to translate the work, bu f. v. Cotta 
also has made alterations and ished additions to it, so that it 
is In reality a new edition. e work commences wit. eneral 
served facts. We trust that the publication of this excellent work 
will inspire our mining engineers and geologists with a sense of 
the importance of carefully observing and recording the facts con- 
nected with the occurrence of ore deposits in this country. The 
ports, might form the basis of — on — 
can “ore deposits,” that would very appropriately supp ement Mr. 
Prime’s translation of von Cotta’s book, and give a still further 
aa 
Scientific work, they being scarcely noticed in the geological sur- 
urf: 
or petrified whiel 
___ strong resemblance. The most noted of those localities, is on the land 
_ Of Mr. Samuel Newell in Pelham. Recent excavations to obtain 
fe mical purposes reveal its presence here in great 
: S 
