PETROGRAPHIC GEOLOGY. 77 



List of references.] 



1884. IRVING AND VAN HISE : On Secondary Enlargement of Mineral Fragments in Certain Rocks. 

 Bulletin No. 8, U. S. Geol. Survey. 



1884. C. R. VAN HISE : Enlargements of Feldspar. American Journal of Science (3), vol. xxvii, pages 

 399-403. 



1884. C. R. VAN HiaE : Enlargements of Feldspar Fragments in Certain Keweenawan Sandstones. 

 Bulletin U. S. Geol. Survey, vol. ii, No. 8, pages 228-231. 



1885. C. R. VAN HISE: Enlargements of Hornblende Fragments. American Journal of Science (3), vol. 

 xxx, pages 231-235. 



1886. C. R. VAN HISE : Upon the Origin of the Mica Schists and Black Mica Slates of the Penokee- 

 Gogebic- Iron-Bearing Series. American Journal of Science (3), vol. xxxi, pages 453-460. 



1886. A. C. LAWSON : Geology of the Lake of the Woods Region, with Special Reference to the Keewatin 

 (Huronian?) Belt of the Archean Rocks. Geological Survey of Canada, vol. i (new series), pages 5-140CC. 



1887. C. R. VAN HISE : Hornblendes and Augites in Fragmental and Eruptive Rocks. American Journal 

 of Science (3), vol. xxxiii., pages 385 388. 



1887. M. E. WADSWORTH : Preliminary Description of the Peridotytes, Gabbros, Diabases and Ande- 

 sytes of Minnesota. Bulletin ii, Minnesota Geological Survey. 



1887. A. C. LAWSON : Notes on some Diabase Dikes of the Rainy Lake Region. Proceedings of Canadian 

 Institute, Toronto. 1887. [Reprinted in the American Geologist, vol. i, pages 199-211.] 



1888. W. S. BAYLEY : Spotted Rocks from Minnesota. American Journal of Science (3), vol. xxxv, pages 

 388-393. 



1888. A. C. LAWSON : Report on the Geology of the Rainy Lake Region. Geological Survey of Canada 

 vol. iii (New Series), Report F, 1888. 



1888. HERKICK, CLARKE AND DEMINO : Some American Norytes and Gabbros. American Geologist, vol. 

 i, pages 339-346. 



1888. IRVING, CHAMHERLIN AND VAN HISE : The Crystalline Schists of the Lake Superior District, 

 International Congress of Geologists. Fourth Session, London, pages 156-170. 



1889. W. S. BAYLEY : Quartz-Keratophyre from Pigeon Point and Irving's Augite-Syenites. American 

 Journal of Science (3), xxxvii, pages 54-63, and vol. xxxix (1890), pages 273-280. 



1889. W. S. BAYLEY : Microscopical Examination of Rocks from the Thunder Bay Silver District. Geo- 

 logical Survey Canada, vol. iii (New Series), Part II, pages 115-122. 



1889. A. C. LAWSON : On the Geology of the Rainy Lake Region. Geological Survey Canada, vol. iii 

 (N'cw Series), Part 1, pages 5-182F. 



1890. GEO. H. WILLIAMS : The Greenstone Schist Areas of the Menominee and Marquette Regions of 

 Michigan. Bulletin Ixii, U. S. Geol. Survey. 



1891. N. H. AND H. V. WINCHELL : The Iron Ores of Minnesota. Bulletin vi, Geological Survey 

 of Minnesota. 



1891. GEO. H. WILLIAMS: Silicified Glass Breccia of Vermilion River, Sudbury District, Canada. Bulletin 

 of the Geological Society of America, vol. ii, pages 138-140. 



1892. R. D. IRVING AND C. R. VAN HISE. The Penokee Iron-Bearing Series of Northern Wisconsin and 

 Michigan. Mon. six, U. S. Geol. Survey. 



1893. W. D. MATTHEW : On Phosphate Nodules from the Cambrian of Southern New Brunswick. Trans- 

 actions New York Academy of Science, vol. xii, April 10. 



1893. U. S. GRANT: The Geology of Kekequabic Lake in Northeastern Minnesota, with Special Refer- 

 ence to an Augite Soda Granite. (Thesis for the degree of Doctor of Philosophy.) Twenty-first Annual Report 

 of the Minnesota Survey. 



1893. W. S. BAYLEY : The Eruptive 'and Sedimentary Rocks of Pigeon Point, Minnesota, and their Con- 

 tact Phenomena. U. S. Geol. Survey, Bulletin cix. 



1893-1895. W. S. BAYLEY : The Basic Massive Rocks of the Lake Superior Region. Journal of Geology 

 vol. i (Nos. 5, 6, 7), vol. ii (No. 8), vol. iii, (No. 1). 



1893. A. C. LAWSON: The Anorthosytes of the Minnesota Coast of Lake Superior; and The Laccolitic 

 Sills of the Northwest Coast of Lake Superior. Bulletin viii, Minnesota Geological Survey. 



1893. N. H. WINCHELL : The Norian of the Northwest. Bulletin viii, Geological Survey of Minnesota. 



1893. FRANK D. ADAMS : Ueber das Norian oder Ober-Laurentian von Canada (Inaugural Dissertation) 

 Neues Jahrbuch fiir Mineralogie. Beil. Bd., viii. 



1893. GEO. H. WILLIAMS : Notes on the Microscopical Characters of Rocks from the Sudbury Mining 

 District, Canada. Geological Survey Canada, vol. v (New Series), Part I, pages 55-82F. See, also, Bulletin Geo- 

 logical Society of America, vol. iii, page 138. 



1893. C. R. VAN HISE : The Huronian Volcanics South of Lake Superior. Bulletin Geological Society 

 of America, vol. iv, page 435. 



1894. J. EDWARD SPURR : The Iron-Bearing Rocks of the Mesabi Range. Bulletin x, Geological Survey 

 of Minnesota. 



1895. FRANK D. ADAMS: A Further Contribution to Our Knowledge of the Laurentian. American 

 Journal of Science (3), vol. 1, pages 58-69. 



1895. SAMUEL WEIDMAN : On the Quartz Keratophyre and Associated Rocks of the North Range of 

 the Baraboo Bluffs. Bulletin of the University of Wisconsin, Science Series, vol. i, No. 2, pages 35-56. 



