Miscellaneous Bibliography. 443 
on p. 50 to be about 23 grains, in place of 15°43 grains. As it 
clearly appears that sulphur, in a very fine state of subdivision, is 
ttery: lectro-plating: the Electrical illumination of Light- 
Houses: the Fire Alarm of Cities: the Atlantic Telegraph: an In- 
troduction to Chemical Physics, designed for the use of Acade- 
mies, Colleges, and Medical Schools. Illustrated with numerous 
engravings, and containing copious lists of experiments, with di- 
rections for preparing them. By'Taomas Rueeies Pyncuon, M.A,, 
Scovill Professor of Chemistry and the Natural Sciences, Trin- 
ity College. 534 pp.12mo. Hartford, 1870. (O.D ) 
chon’s book is designed chiefly for a class of readers 
who would be unable to follow him with aid of mathematics. 
“ All matters of which a knowledge could equally well be obtain- 
ed from any good treatise on Natural Philosophy, have been omit- 
ted,” the author tells us in his Preface :—a statement which appears 
hardly sustained by the rather copious list of “ subjects which 
have been most carefully elaborated,’ commencing with ‘heat,’ 
and embracing pretty much the usual range of physical topics. 
The work is very neatly printed, and while it is not well adapte 
to the accurate drill of the recitation room, it is a good vade me- 
cum for a course of lectures on chemical physics, and for the use 
of the general reader, containing a large amount of useful and in- 
teresting information on various cognate physical subjects. 
3. The Life of John James Audubon, the Naturalist. Edited 
by his Winow, with an introduction by James Grant Wizson. 
443 pp. 12mo. New York, 1870. (G. P. Putnam & Son.)—This 
Mrs. Audubon, and sent 
obert 
the original manuscript. erica : 
additions, and suppresses several objectionable passages inserted 
! : on was a wonderful combination of 
ist, ni; i i into an intense individuality 
ans and devotees, among whom the names Wil s ‘ 
Audubon must always stand preéminent; and this loving tribute of 
a devoted wife, who was always the sympathizing companion ot 
her husband, will revive in the present generation something ot 
