Recent Publications. 117 
Description of new genera and species of fossils from the middle 
Cambriiui. Charlei D. Walcott. (Advance sheets from the Proc. U. 
S. Nat. Mu8., Issued June 11, 1889.) 
Bui. N. Y. State ^fu8. Nat. Hist. No. 7, June 1889, contains Prof 
Smock's "First report on the iron mines and iron ore districts in the 
State of New York," with a map showing their distribution. 
2. Proceeding! of Scientific Societies. 
Tlie coral reefs of the Hawaiian islands. By Alexander Agassiz, 
with 13 plates. Bulletin Mus. Comp. Zool, vol. xvii. No. 3. April, 1889. 
The faults in the Triassic formation near Meriden, Connecticut. By 
William Morris Davis. Bulletin Mus. Comp. Zool. Vol. xvi, No. 4, 
April, 18S9. 
Proceedings of the Canadian Institute, Toronto. Vol. xxiv, No. 151. 
The Caves and pot-holes at Rockwood. Prof. J.Hoyes Paijton. Geolog- 
ical formation at Port Colborne. John C. McRae. 
Annual Report of the Council of the Canadian Institute. Included in 
the report of the Minister of Education, Ontario, 1888; consists princi- 
pally of the illustrated archaeological report of the Curator. David 
Boyie. 
Bulletin of the American Museum of Natural History. Vol. ii. No. 2, 
contains observations on some imperfectly known fossils from the Cal- 
ciferous sandrock of lake Champlain, and descriptions of several new 
forms, by R. P. "Whitfield ; Additional notes on Asaphus canalis Con- 
rad, by R. P. Whitfield; Description of a new form of fossil Balanoid 
Cirripede, from the Marcellus shale of New York, by R. P. Whitfield; 
and note on the faunal resemblance between the Cretaceous forma- 
tions of New Jersey, and those of the gulf states, by R. P. Whitfield. 
3. Papers in Scientific Journals. 
Am. Jour. Sci. June No. Topographic development of the Triassic 
formation of the Connecticut valley. W. M. D.wis. Analysis of three 
descloizites from new localities. W. F. Hili.ebrand. New meteorite 
from Mexico. J. E. Whitfield, Contributions to the petrography of 
the Sandwich Islands. E. S. Dana Allotropic forms of silver. M. 
Carey Lea. 
Am. Naturalist, Feh.No.On the Permian formation of Texas. Charles 
A. White. 
4. Excerpts and Individual Publications. 
The relations of geology and engineering practice: an address de- 
livered before the engineering students of the Arkansas Industrial Uni- 
versity, Oct. 29, 1888. By Arthur Winslov. 
The United States ; facts and figures illustrating the physical geo- 
graphy of the country, and its material rosmirces. Written for, and 
published in part in the Encyclopedia P.ritannica (ninth edition). By 
/. D. Whitney; Boston, Little, Brown c<c Co. 1889. 
On the crystal form of metallic zinc. C>o. H. Williams and Tim. if. 
Burton. From the American Chemical Journal. Vol. xi. No. 4. 
