312 Obituary. 
Chemistry, vag Electricity, Illumination, rawoneeag and many aan 
titles, which are partly reviews of progress and partly new additions. 
The work is very valuable as a book of reference, and displays great 
coreg th and good judgment in its preparation. 
ansactions of the Illinois Natural History Society, Vol. 1, 2nd 
ed. 194 pp. 8vo. Springfield, Illinois; edited by C. D. Wilder, Secre- 
tary.—This first part of volume I. contains a short paper on a geologica 
section of the Rock river valley, Ill., by O. Everett, M.D.; another on the 
remains of the Mastodon in lilinois, by C. D. Wilder; others containing 
catalogues of Illinois species in Botany and some departments of Zoology, 
by R. H. r, C. Thomas, and G, Vasey, besides an article on Insects 
injurious to vegetation, y B.D, Walsh. "The Mastodon remains de- 
were found in Northern Illinois near Aurora (west of Chicago). 
sey consist of two tusks and seven teeth. The tusks were 10 feet long. 
- On the Origin of Species, or the Causes of the Phenomena of Or- 
nic Nature—a — eget = Ts - ae ae Men; by Tuomas 
i. Hoxtey, F.RS., 0 pp. 8vo. . New York, D. Appleton & 
pany This Witle. en Published a the English edition, is @ 
brief popular discussion of the great subjects mentioned in the t itle. We 
have already expressed some of our objections to the teachings of the 
author on species, in our notice of his work on “ Man’s Place in Nature.” 
OBITUARY. 
amurt Prescorr Hizprers, of Marietta, Ohio, - nearly forty 
years a constant contributor to this J ournal, died July 24, 1863, at Ma- 
rietta, after an illness of about three weeks. His dese: enteric fever, 
commenced July 5, resulting in hemiplegia on the 18th, manifested by 
es and paralysis of the right side, which continued until death. 
He was nearly 80 years of age, aoe been born Sept. 30th, 1783, in 
Methuen, vas Co., Massachus 
Dr. Hildreth was one of the rer apr of science in the coe 
undertook an exploration of the coal regions of the Ohio, ‘hich was 
poblished in January, 1836, (ol pay p. 1), under the title of “Observa- — 
e Bituminous coal d eposits of the valley of the Ohio, and 
Re pebienpadiytiig rock strata; with notices of the fossil ongame remains 
ies, ill 
