300 Bibliography. 
Geodesy and Nautical Astronomy. He has happily digested into a 
short systematic treatise the principal abe employe upon the 
has 
coast survey of the United States, and explained the use of the 
magnetic clock in recording aboervatiodn ond entered into the subjects 
of canal and railroad engineering, and the construction of maps. | The 
of Bowditch’s Navigator, by permission of G. W. Blunt the proprie- 
tor of that work. The author has also introduced Prof. Chauvenet’s 
paper on unlimited triangles, and has given a new sone of deducing 
Napier’s seep by means of the Gauss equa 
5. Revie w of Chemistry for Students, patois to the courses as 
taught in ie principal Medical schools of the United States; by J. G. 
Morrny, M.D. 328 pp. 12mo. Philadelphia: 1851. Lindsay & 
Blakiston.—The author has prepared this work in order to furnish the 
student with a condensed review of the principles and facts of chem- 
istry that may be a convenient accompaniment to a course of lectures, 
and serve for an easy revision of the subject. Although not offered a 
a text-book it has the same range in a briefer sack We are not salis- 
see a want of precision in some of the re Serpe But the work Is 
still a good one, and may well answer the purpose for which it is In- 
tended. The changes in the formation of compounds by complex de- 
compositions are exhibited to the eye, - the facts under each head 
are en and clearly brought o 
6. —— es +4 a a Suroey of the State of 4 rela 
. Louis. 1851.—The state 
and we add oure ealetnenpnes to ie - has st and our earnest 
aw 
~ at the same tim seriasorabihe- * er inislligedes and love of — 
Itis a fact ofa some — that-in recent prarsaitess upon the ha 
de 
If science has cated forward the world with a progres so wonderful; 
per, zinc, cobalt, iron; material for glass and porcelain ; soared 
salt, alum, copperas; and what other undeveloped treasures we know 
not. But even without such inducements to survey thorou wee het 
_ borders and obtain a just knowledge of her resources, the advancem 
of science in its highest and =— signification, should be a 
incenti ive. 
