380 _ Misceilanies. 
Should you visit New York soon, you would honor me much by 
calling upon me, and I then could explain myself more fully. May 
I beg the favor of your sending me that number of the American Jour- 
nal in which the description of the telescope will appear. With very 
many thanks for the trouble I have occasioned you, 
remain your obedient servant, Lron LEWENBERG, 
New York, 28th Feb., 1840, 
8. Interesting Minerals.—The subscriber has recently supplied 
himself with an additional collection of the interesting minerals of 
Nova Scotia, formerly discovered by Dr. Jackson and himself, and is 
desirous of exchanging them for those of other regions, foreign or 
domestic. The minerals are similar to those found in the trap rocks 
of other countries, and the specimens have been selected with great 
care, are of good size, and most of them beautifully crystallized, 
often uniting in the same mass, several different species.* Those who 
may wish to exchange for them specimens of an equivalent charac- 
ter, will please forward to the subscriber a list from which he may 
make a selection ; his object being to obtain those from localities with 
which his cabinet is not already supplied, without adding much to his 
stock of duplicates. The minerals comprise most of the species of 
the genus Kouphone spar of Mohs and Haidinger, besides most of 
the varieties of rhombohedral and uncleavable quartz, with several 
interesting ores of iron and copper, crystallizations of carbonate and 
sulphate of lime, &c. &c, Francis ALGER. 
Boston, January 1, 1840. 
9. Observations Meétéorologiques a Masnitiques. faites dane DP éten- 
due del’ Empire ne 
ment, par A. T. Kuprrer, Mem. Read Sci. St. 5 cine Sa St. 
Pétersbourg, 1837. 4to. pp. xlvi and 196.—We have been favored by 
the author with the first volume of this valuable work. It contains, 
Ist. Extracts from the instructions given to the officers of the mines, 
appointed to make meteorological and magnetical observations in the 
Russian Empire, and 2d. Series of tables of observations in meteor- 
ology and in magnetisin, made at St. Petersburgh and at Catherinen- 
burg, in 1835, 1836. The meteorological observations were taken 
eight times per — and appear to have been made with very great 
care. 
oran enumeration of these isa. & the reader is referred to Vols. x1v and x¥ 
of this Journal, and to the Memoirs of the American Academy, for 1833, new 
series. Hayy recently inspected them in Mr. Alger’ 's cabinet, we can bear tes- 
timony.to their extraordinary beauty and pees eS 
