GEOLOGICAL WRITINGS OF. ALEXANDER WINCHELL. 559 



Voices from Nature : Ladies'' Repository, vol. xxii, 1862, pp. 396-iOO, 488-492, 518- 



522, 577-581; vol. xxiii, 1863, pp. 46-51, 72-74, 149-153, 201-204, 269-272, 385- 



390, 456-460, 518-520, 625-628, 678-684, 745-747 ; vol. xxiv, 1864, pp. 31-33. 



[Sixteen articles.] 

 Description of Elephantine Molars in the Museum of the University of Michigan : 



Canadian Naturalist, October, 1863, pp. 398-400. 

 Report, Historical and Statistical, on the Collections in Geology, Zodlogy and Botany 



in the Museum of the University of ^Michigan, made to the Board of Regents 



October 2, 1863, Ann Arbor : Published by the University, 1864, 8vo, pp. 26. 

 Notice of a small Collection of Fossils from the Potsdam Sandstone of Wisconsin 



and the Lake Superior Sandstone of Michigan : Am. Jour. Sci. and Arts, 2d 



series, vol. xxxvii, 1864, pp. 226-233. 

 The Oil Region of Michigan. Description of the Baker Tract, situated in the heart 



of the Oil Region of Michigan. Detroit, 1864, 8vo, pp. 7 ; republished in Am. 



Jour. Sci. and Arts, %& series, vol. xxxix, p. 350. 

 Notice of the Remains of a Mastodon recently discovered in Michigan : Am. Jour. 



Sci. and Arts, 2d series, vol. xxxviii, 1864, pp. 223, 224. 

 Geological Map of Michigan. Published by S. Geil, Philadelphia. 

 On the Origin of the Prairies of the Valley of the Mississippi: Am. Jour. Sci. a)id 



Arts, 2d series, vol. xxxviii, 1864, pp. 332-344. 

 Postscript to Professor Winchell's article on the Origin of Prairies : Am. Jour. Sci. 



and Arts, 2d series, vol. xxxviii, 1864, pp. 444, 445. 

 The Soils and Subsoils of Michigan. An address delivered before the Executive 



Committee of the Michigan State xlgricultural Society in Representative Hall 



at Lansing, Thursday evening, January 19, 1865. Published by order of the 



legislature. Lansing, 1865, 8vo, pp. 30. 

 On the Oil Formation in Michigan and Elsewhere. From a report on the " Baker 



Tract" near Lakeport, Saint Clair county, ]Michigan: Am. Jour. Sci. and Arts, 



2d series, vol. xxxix, 1865, pp. 350-353. 

 An act to provide for the completion of the Geological Survey : 3flch. Legislative 



Proc, February 10, 1865. 

 Geological Report on Certain Oil Lands lying in the Counties of Sanilac and Saint 



Clair, Michigan, comprising in all about 31,000 acres. Detroit, 1865, 8vo, pp. 



8, with map. 

 Descri])tions of New Si)ecies of Fossils, from the ^Marshall Group of Michigan, and 



its supposed equivalents in other States ; with Notes on some Fossils of the same 



age previously described : Froc. Acad. Nat. Sci. Phila., vol. x vii, 1865, pp. 109-133. 

 Report on the Maseum of the University of Michigan: Proc. Board of Regents for 



1865, p. 4. 

 Some indications of a Northward Transportation of Drift Material in the Lower 



Peninsula of ^Michigan: Am. Jour. Sci. and Art>t, 2d series, vol. xl, pp. 331-338. 

 Note on the Geology of Petroleum in Cana-ia West: Am. Jour. Sci. and Arts, 2d 



series, vol. xli, 1866, pp. 176^178. 

 Report on the Oil Lands of Lambton County, Canada West : Detroit, 1866, 8vo, 



pp. 15, with maps. 

 Report on certain Oil Lands in Wetzel County, West Virginia, 1866: 12mo, pp. 3. 

 The Grand Traverse Region. A Report on the Geological and Industrial Re- 

 sources of the Counties of Antrim, Grand Traverse, Benzie and Leelanaw in 



the Lower Peninsula of Michigan : Ann Arbor, 1866, 8vo, i)p. 97, with map- 



[Embraces notices and descriptions of 50 species of fossils.] 



