$ 
656 Proceedings of Sctentific Societies. [June, 
papers, and contributed numerous pise to the cyclopædias. 
Thomson early saw the truth in the theory of evolution, and 
taught it when it was not fashionable. 
— Dr. George Engelmann, born at Frankfurt on-the-Main, 
ake 2d, 1809, died, in the midst of his scientific labors, a 
s home in St. Louis, on Monday, February 4th, 1884, in the 
seventy Bh year of his age. 
—The grand honorary Walker prize of $1000 has been awarded 
by the Boston Society of Natural History to Professor James 
Hall, of Albany, for his paleontological investigations. 
:0: 
PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
NATIONAL ACADEmy OF Sciences, April 15-18.—The | number 
of members present was nearly forty, the session lasting four 
days. An interesting feature of the meeting was the cana 
ment that Mrs. J. Lawrence Smith has presented, as a memora a 
her husband, a member lately deceased, a harie of P gi 
promotion of research on meteorites, Five n ge 
elected, viz., Edward S. Dana, C. B. Comstock, °S, 1. 1 Smith 
Dutton and W. K. Brooks. 
The following papers were read : 
Ee: suffici “ges of t DETEN rotation to hang A river courses, G. K..Gilbert 
r 
On the protographs of the cack of Teni faked at the Lick observatory- oo 
Commis- 
Zoslogical rests of the deep-sea pi ti expedition of the U. S. Fish 
r Albatross. A, E. Ver aR Remsen. 
The 
sa Sa veers of halogen derivatives of carbon ped an I 
‘ e as peg 
The study of comparative biography, C. S. P ~ G, Peirce mÈ 
Whether rea is a minimum perceptible dhera a sensation. C. 
astr 
The askas of the heat radiated from the soil. 5. P. Langley If of Mexico, with #8 
On the depth of the western hae of the Atlantic ocean and Gu 
exhibition of a relief model. J. E. Hilgard. and Gulf of Mexi 
On the relative ig! of the wwesieri part of the Atlantic ocean P 
with respect to the Gulf Stream; J. E. Hilgard. nus of sharks of 
On the structure ah affinities of Didyma, a still living gen" 
Carboniferous period. E. D. Co 
On the North American species or Mastodon. E. D, Cope nd John A. Rr iat 
The characteristics of the Lyomerous Fishes. Theo. Gils oka i. Ryder (b7 
On ior Pariser of the soda fishes. Theo. Gill an J 
Theo. Gill. 
On de isiirhyotagieal PRR NA of a Te realm. 
On the fritts selenium Geo. F. B prè- 
On a lantern ta rol Geo. F. Bake. ior, Geo. J- 
w i i m Lake S jad 
ng a new panaan of the pan > Ri dge- B. Siia je 
the ety of tin ore in the rocks of the Bl on bet 
Krakatoa ic waves the question A a cont by invitation} 
etric poor xe wid atmospheric electricit nolo I 5” pilings 
t 
