302 Book Notices. 
reader, it is equally valuable, for in.the case of conflicting statements it 
enables him at least to form some opinion as to which are most likely 
to be reliable, and as to the necessity of further investigation. 
The book is indispensable to the chemical student. We feel the want 
of the third part, for the sulphates, phosphates and tartrates, etc., and 
shall welcome its appearance. oI 
2. Chambers’ Encyclopedia: a Dictionary of Universal Knowledge for 
the People. Illustrated. Philadelphia: J. B. Lippincott & Co. Edin- 
burgh: W. & R. Chambers. 1861-1863, Vols. I-V, royal 8vo, pp. 
828 each.— We have in a previous volume of this Journal noticed the 
commencement of this valuable publication. It has now reached the 
committed of extending such notices beyond the proper limits of a 
dictionary of knowledge to the dimensions and scope of elaborate 
di ae are also introduced, and the electrolytic detection of metals is 
revived. 
4. Dana’s Manual of Geology.—A revised edition of Dana’s at 
of Geology has just been issued by the publishers (T. Bliss & Sows 
. cu 
long-tailed Bird of Solenhofen, copied from the last December number 
oe OBITUARY. sie 
Epwarp Hircucoox.—Professor Edward Hitchcock died at sue 
i usetts, Feb. 27th, at six in the morning, aged seventy years Al 
nine months, He was born at Deerfield, Mass., May 24th, 119300 BE 
though enjoying limited advantages of early education he had the pos 
tion of Principal of the Academy in his ht town, from 1815 mane 
ag which time he also edited an almauac. In 1811, when on} 
years of age, he made observations on the comet and solar eclips¢ 
