484 Miscellaneous Intelligence. 
On the unity of the system of life in animals and the true principle of grada- 
tion in the various animal types; A. Guyot. 
On repeating curves; H. A. Newton. 
On the stability of the Meridian Circle of the Observatory of Harvard College; 
Joseph Winlock. 
some experiments made with a slitless Spectroscope in 1871, in order to see 
the whole chromosphere of the sun at once; J. Winlock. is sae 
observations of the Sun made at the Observatory of Harvard College in 
1872, with the aid of the Bache Fund; J. Winlock. 
On a method of illuminating the threads of the reticule of a telescope by the 
electric spark; J. Winlock. 
omparison of the Spectra of the limb and of the centre of the Sun, made at 
the Sheffield Scientific School; Chas. S. Hastings, read by H. A. Newto 
On i rmonies of the Solar System; Stephen Alexander. 
Report of progress of a Magnetic Survey made by the aid of the Bache Fund; 
J. E. Hilgard. 
Eulogies were also read on deceased members of the Academy: 
on Dr. John Torrey, by Prof. Asa Gray; on Prof. William 
Chauvenet, by Prof. J. H. C. Coffin. - 
e following members of this Academy have died during the 
ear 1872-73: J. H. Coffin of Easton, Pa.; James Hadley of New 
ven; John T, Frazer of Philadelphia; William Stimpson of 
Chicago ; and John Torrey of New York. : 
e following new members were elected: Theodore Gill of 
Washington, D. C.; Elias Loomis of New Haven; Joseph Lover- 
i b 
oceans by the way of the Isthmus of Tehuantepec; by R. W. 
Suuretpt, Capt. U. 8. N. 151 pp. 4to, with 20 maps. (Made 
under the direction of the Secretary of the Navy.) _ Washington, 
Comm. A. Hopkins, U.S. N. ap No. 18 is a colored geckos 
chart of the isthmus of Tehuantepec, showing the limits of the dif- 
ation of Medicinal Chemicals: a guide for the determination - 
their identity and quality, and for the detection of impurities an 
adulterations. For the use of pharmaceutists, physicians, yn 
gists, and manufacturing chemists, and of pharmaceutical an 
medical students. By Freperick Horrman, Ph.D. 393 pp. 8° 
with 96 wood-cuts. 1873. New York (D. pear & Co.)— 
This title fully explains the object of Dr. Hoffman's Manual, 
which is a carefully prepared book, and well up to the existing 
oe ‘State pags the science and art of modern Pharmacy. It 1s 4 
book whic d its place in every medical and pharmaceuti- 
a cal laboratory, and isa ars and Gasuctive guide to medical stu- 
_ dents and practitioners icine. 
al 
