212 Miscellanies. 
braces a variety of interesting and valuable communications, relative 
to the Natural History, Topography, and Geography of the Cana- | 
das; and in particular, a paper, entitled, “ A Grammar of the Hu- 
ron Language,” which occupies above one hundred pages of the 
Transaetions. Parts I. and JI. of Vol. III. for July, 1832, contain 
a Memoir on the Mirages of the St. Lawrence, one on the Climate 
of Canada, a mathematical paper on parallel lines, and a communi- 
cation on the plants of Canada. Part II. contains the continuation of 
Mr. Sheppard’s Notes on the Plants of Lower Canada, Lt. Badde- 
ley’s Report on the Magdalen Islands, with a handsome lithographic 
map, and a notice on the pigments of Canada. This society cannot 
fail of receiving the high commendations which it deserves, for the 
spirit and success vith which it has thus far been conducted. 
25. Exchanges in Natural History—M. T. D. Michahelle, Dr. 
Med. and Phil., Munich, in Bavaria, in a letter to the Editor, dated 
April 24, 1833, proposes to the naturalists of this country, to ex- 
change the animals and plants of Southern and Central Europe, (par- 
ticularly those from the Alps of Germany and Switzerland, Italy, 
France, Dalmatia, and Albania, and their confines,) for those of 
North America. 
Dr. M. is very desirous of these exchanges, and wishes to obtain of 
the class manmalia, aves and amphibia, one, two, three, four, or 
more specimens of each species; of the mollusca, only those species 
which inhabit the land or fresh water ; of insects, only the coleoptera 
and lepidoptera ; of plants, all, both phanerogamous and cryptoga- 
mous. He will furnish to those who desire it a complete catalogue 
of each class and order of his collection. 
26. Magnetic Oxide of Iron.—Copy of a letter from Thos. G. 
Clemson, to Hez. B. Pierpont, Esq., dated Paris, May 238d, 1833. 
Str,—Some two months since, Mr. Henry Evelyn Pierpont put 
into my hands a specimen of a magnetic oxide of iron, having a crys 
tallized structure, color grayish black, and when reduced to powder, 
of a greenish brown. It acts upon the needle, without possessing 
evident marks of polarity. It was from Franklin County, State of 
New York. 
As he desired, I examined the same, and the following are the 
results, which he desired that I should forward to your address. 
The substance, when heated with muriatic acid, leaves no insolu- 
ble residuum, 20 grammes of the ore, and 6 grammes of borax, 
