118 Recent Publications. 
A platiniferous nickel ore from Canada, F. W. Clark and Charles 
Catlett, Am. Jour. Sci., May, 1889. 
Methods of modern petrography. By H. Hensoldt, School of Mines 
Quarterly. No. 3, vol. x. 
Memoir of Dr. Douglass Houghton, first state geologist of Michigan, 
with an appendix containing reports or abstracts of the first geological 
survey, and a chronological statement of the progress of geological ex- 
ploration in Michigan. By Alv ah Bradish, A. M. Octavo, 302pp., with 
a portrait of Houghton. Raynor and Taylor, Detroit, Michigan. [See 
Vol. Ill, p. 403.] 
The distribution of phosphorus in the Ludington mine. Iron moun- 
tain, Michigan ; a study of isochemic lines. By David H. Browne. 
From the Trans. Am. Inet. Min. Eng., Feb. 1889. 
Die Gattung tubicaulis Cotta; bearbeitet von Dr. Gustav Stenzel. 
(From Dr. Geinitz Mittheilungen, Dresden, achtes Heft, 1889.) 
Descriptions of new species of fossil Crustacea from the lower Silurian 
of Tennessee. /. M. Safford and A. W. Vogdes. (Proc. Acad. Xat. 
Sci. Phil. 1889.) Author's edition, printed in advance. 
On some remarkable organisms of the Silurian and Devonian rocks 
in Southern New Brunswick. By G. F. Matthew. From Trans. Roy. 
Soc. Can. Sec. iv, 1888, p. 49. 
On the crystallization of igneous rocks. Hy Joseph Pax$on Iddings- 
(Phil. Soc. Wash. Bulletin, volxi, pp. 65-113.) 
On the occurrence of fossils of the Cretaceous age on the island of 
Martha's Vineyard, Mass. By N. S. Shaler. (Bui. No. 5, vol. xvi, 
Mus. Comp. Zool.) 
On the volcanoes and volcanic phenomena of the Hawaiian Islands. 
James D. Dana, (with a paper on the petrography of the island, by 
Edward S. Dana.) A collection of recent papers in the American Jour- 
nal of Science. 
Glaciation of mountains in New England and New York. Warren 
TJpham. (Appalachia, May, 1889.) 
The northern limits of the mesozoic rocks in Arkansas. By 0. P. 
Hay, (From vol. ii. Annual report, Geol. Sur. Ark.) 
5. Foreign Publications. 
Ueber die chemische Constitution und iiber de Farbe der Turmaline 
von Schiittenhofen, von R. Scharizer. Aus zeit. fiir Krystallographie, 
Leipzig, vv. 4, 1889. 
Om att fynd ai uroxe i Rakneby, Ryssby socken, Kalmar Ian, jemte 
bidrag till fragen om tiden for vara subfossila oxarters utdoende, af N. 
0. Holtz. Aft. ur Geol. Foren i Stockholm Fdrhandl. Bd. x. Hoft 7, 1888. 
Schriften des Naturwissenschaftlichen Vereins fiir Schleswig-Holstein. 
Bd. VII, 2 Heft. Kiel. 1889. Contains : Verzeichniss der in der Kieler 
Sammlungen befindlichen fossilenMolluskenarten ausdem Rupelthone 
von Itzehoe nebst Beschreibung einiger neuer und einiger selteneren 
Formeu. Dr. H. J. Haas. Ueber zerquetschte Geschiebe. 0. Zeise. 
