1890.] Recent Books and Pamphlets. 1175 
NEWTON, E. T:—A Contribution to the History of Eocene Siluroid Fishes, Extract 
Proc. e Zool. Soc., 1889. From the author, 
ORTON, E. —Origin of the Rock Pressure of Natural Gas in the Trenton Limestone 
of Ohio and Indiana. Extract Bull. Geol. Soc. Am., Vol. I., pp. 87-98. 
PECKHAM, G. W. and E. G.—Observations on Sexual Sesion in Spiders of the 
Family PHP From the authors. 
Records of the Australian Museum, Vol. I., 
Report of the Cornell University Agricaidral aka Station, 1889. 
Report of the Commissioners of Education, agai 88. From the Dave of Education. 
Report of the Marine us green 
of Missouri Botanica en 
E of the Yorkshire ‘Piso emi 1889. 
RIDGWAY, R.—A Review of the Genus Xiphocolaptes of Lesson.—A Review of the 
Genu nee of Sued .—Birds Collected on the Island of Santa Lucia, Abrolhos 
Island, and at the Strait of Magellan, in 1878-'88. Extracts Proc. U. S. Nat. Mus., Vol. 
SCHLOSSER, M.— Ueber die Modifikationen des Extremitätenskelets bei Säugetier- 
stammen. Sonderabdruck aus dem Biologischen Centralblatt. "ood the author. 
MOCK, J. C.—Sketch of George H. Cook. Extract Am. Geol., December, 1889. 
From the author. 
STEPHENSON, F. B.—Evolution of Masonry and Theology. From the author. 
STEVENSON, J. J.—The eme Rocks of Southern Colorado and Northern New 
Mexico. Extract Am. Geol., From the author. 
THOMAS, O.—On the Dash of Ornithorhyncus. Extract Proc. Roy. Soc., Vol. 
XLVI. From the author. 
Topp, D.—The Total Eclipse. Bull. No. 4, U. S. Expedition to Africa. From the 
author. 
TOPLEY, W., AND C. D. SHERBORN.—The Geological Record for 1880-'84, Vols. I. 
and II. From the editors. 
TREAT. C. R.—Sanitary Entombment. Reprint from The Sanitarian, December, 
1889. From the author. 
TRYON, H.— Report on Insect and Fungus Pests. From the author 
TUCKERMAN, F.—An Undescribed Taste Organ in Perameles nasu Oe the Gus- 
tatory yee of Arctomys monax. Sonderabdruck aus Anat ae Anzeiger, IV., 
Jahrgang, 18 
Th tory Organs of Vulpes vulgaris. Extract from the Journal of Ana- 
tomy and an Vol. XXIII 
On ‚the Development of the Gustatory Organs of Man. Extract ee d 
Anatomy = oe Vol. XXIII.—On the Gustatory Organs of Putorius vis 
From ui 
UR 
ER, Woa the Gere. of Halicore dugong. Trans. Roy. Soc. of 
ee, Vol. XXXV., Part 
UP Structt f Drumlins.—Marine Shells and Fragments of Shells 
in the Till near Boston. Extracts Proc. Boston Soc. Nat. Hist., Vol. XXIV.—Glaciation 
of Mountains in New England vibes New York. Extract Appalachian, Vol. V., No. 4. 
the author. 
UHLER, P. R.—New Genera and Species of American Homoptera.—Additions to 
Observations on the Cretaceous and Eocene Formations of Maryland. Extracts Proc. 
Maryland Acad. ima 1888. From the author. 
VANCE, A. D.—A Confession of Faith. From the author 
VAN HISE, C. on Pre-Cambrian Rocks of the Black Hills. Extract Bull. 
Geol. Soc., Vol. I., pp. 203-244. From the author. 
Amer. Nat.—December.—5. 
