484 GEOLOGICAL EXCURSION TO THE ROCKY MOUNTAINS. 



Irving, R. D.; " The copper-bearing rocks of Lake Buperiorj" Mom. v., u. s. (i. s., 

 1893. " Preliminary paper on on investigation of theArohtean formations of 

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Kloos, J. II. ; '• Geologische Nbtizenaus Minnesota;" Zeitsch. «1. d. geol, Gesell., IS71. 

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Lawson, A. C.j "Reporton the Geology of the Lake of the Woods region, with 

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and Nat. Mist. Box. Canada, Vol. I. n. 8. C. ('., 1880, pp. 1-151. ,4 Report on the 



( (oology Of t he Rainy Lake region : " Geol, and Nat. Mist . Sin . ( 'anada, Part F, 



Ann. Kept., Ill, 1887. 

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1852. 

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Nord-Amerika ; " Nenes Jahrb. f. Min. Geol. u. Pal., 1877, pp. 81-56, 118-138, 



225-242. Translated in the llth (1882) Ann. Rept. Geol. Bur. Minn., pp. 80-85, 

 Winohell, A.; " Conglomerates inolosed tngneissioterranee;" Amer. Geol., VoL m, 



1880, pp. 153-165,250-262. "Some results of Aromnan studies;" BuL Geol. 



Soc, Amor., I, pp. 357-39 1 . ''A last word with the Muronian;*' Bnl. Geol, Sou. 



Amer., Vol. II, p]>. 85-124. 

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Minnesota;" Amer. Ceol., Vol. Ill, 1889, pp. 18-22. 

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Of Minnesota;" A. A. A. 8., Cleveland Meeting, 1889, pp. 212-221. 



MONTANA AND THK YELLOWSTONE PAKE. 



35. "Geology of the Crazy Mountains, Montana," by J. E. Wolff. Bull. Geol, Soc. 



Amer., Vol. in, pp. 415-152. 

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Geol. Survey, Bull. No. L05. 



37. "Cinnabar and Bozeman coal fields of Montana," by Walter II. Weed. Bull. 



Geol. Soc. Amer., Vol. II, pp. 349-364. "Two Montana Coal Fields," by 

 Walter II. Weed. Bull. Ceol. Soc. Am., Vol. ill. pp. 301-330. 



38. "Glaciation of the Yellowstone Valley north of the National Park," by Walter 



II. Weed. IJ. S. Geol. Survey, Hull. No. 104. 



39. Fifth Ann. Kept. U. S. Geological and Geographical Survey, 1S72, p. 162. 



40. "Geology of the Yellowstone Park," by W. M. Holmes; "Thermal Springs of the 



Yellowstone Park," by Dr. A. C. l'eale. Twelfth Ann. Rept. F. S. <;. and (i. 

 Survey, Part n. Washington, 1*83. 



41. "Geological history of the Yellowstone National l'ark." by Arnold Eague. 



Trans. Am. Inst. Mg. Kngrs., Vol. xvi, 1SN8, p. 7S3. 



42. "Obsidian Cliff," by J. I'. Iddings. U. S. Geol. Survey, Seventh Ann. Rept., 



Washington, 1888, pp. 249-295. "Spherulitic crystallization," by J. P. [ddings. 

 Bull. Phil. Soc. of Wash., Vol. it, Washington, 1891, pp. 115-164. 



43. "Formation of travertine and siliceous sinter," by Walter II. Weed. 1'. S. Ceol. 



Survey, Ninth Ann. Sept., 1890, p. 613. "The Diatom beds of the Yellow- 

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44. "Montana coal fields," by G. II. Eldrid^e. Tenth Census, Vol. xv. Mining 



Industry, pp. 730-757. 



45. " Butte, Mont.," vide: "Grangrevier von Butte," by G. vom Rath. N. Jahrb. f. 



Min., Geol., u. Pal., Jahrg. 1885, Bd. i. ••Western Montana,** by C. O. Ziegen- 

 fuss. Butte, Mont., 1886. "Silver mining and milling at Butte," by W. P. 



