1878.] Proceedings of Scientific Societies. 137 
cular, would, while forming a part of the Universal Exhibition, 
without farther cost, meet all the requirements of an International 
Geological Exhibition. To the accomplishment of this end it 
will only be necessary for the exhibitors of all nations to send a 
list of their geological contributors to the local committee of or- 
ganization at Paris. 
All correspondence relating to the congress should be addressed 
to Dr. Jaunetaz, secrétaire-général, rue des grands Augustins 7, 
Paris, France, and all moneys sent to Dr. Bioche, at the same ad- 
dress. 
— Russell S. Hill has recently returned to Philadelphia from- 
Kansas, where he as been, for several months past, exploring for 
Prof. E. D. Cope. He discovered many fine vertebrate fossils, in- 
cluding a Protostega gigas, the bones of which, cleaned from the 
matrix, weighs three hundred pounds. He also discovered the 
new mastodont Tetralophodon campester,and numerous other mam- 
malia. 
a TEESE OTE AET E BERE, 
ERRATA.—Page 51, second paragraph of: Botany, first line, for “ized” read “ined;” second, for 
e a fi ‘ mensiesii ” read ‘‘ menziesii” twice; seventh, 
for “‘empitriformis’’ read ‘‘empetriformis ;” eighth, for ‘‘ Erigonium’’ read ‘‘ Eriogonum”’ twice ; 
tenth, for “ Polymonium”’ read * Polemonium ;” next paragraph, for * Booth ” read ‘‘ Boott; also 
ph. 
PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
_ Putnosopaicar Sociery oF WasuinoTon, D. C., Nov. 24, 1877. 
_ His annual address was read by the President, Prof. Joseph 
Henry. It includeda sketch of the methods of scientific research, 
_ and an account of the progress of investigations into the phe- 
_ nomena of sound as exemplified by fog-signals. It was shown 
that experiments of all kinds tended to increase the probability 
_ that refraction of the sound waves or beams was the chief factor 
= in producing the supposed abnormalities. 
_. Lieutenent-Colonel Garrick Mallery, U. S. A., read a paper on 
Certain errors, in general acceptance, in regard to our aborigines. 
It was especially devoted to showing that the number of Indians 
in the United States, exclusive of Alaska, in spite of losses by 
violent death, is probably on the increase, and that the discrep- 
ancy between their present numbers and the earlier accounts is 
chiefly due to the exaggerated and erroneous nature of the latter. 
This paper being unfinished when the hour of adjournment 
arrived, the remainder was postponed until the next meeting. 
_ Dec. 8, 1877,—The same paper was continued. The author 
referred to poisoning arrow-points, belief in a single supreme 
Spirit or deity, supposed knowledge of medicine or medicin 
roperties of plants, etc., as being in the category of popular 
