102 PROCEEDINGS OF OTTAWA MEETING. 



Geological Survey of Ohio : vol. ii, part i. 1874, Preface, Surface Geology, the Car- 

 boniferous System, pp. 1 9, 1 180, plate 1. maps, I. The chapter on the Sur- 

 face Geology was reprinted with four maps. 



(in t he structure and Origin of the Greal Lakes: Proc. X. )'. l/yc. Nat. Hist., *_M 

 series, I 874, p. L36. 



Geological Survey of Ohio : vol. ii. part i, 1874, Geology of Erie County and the 

 Islands, pp. 183-205, 1 map. 



Geological Survey of Ohio: vol. ii. part i, 1S74. Geology of Lorain County, pp. 

 206-224. 



Parallelism of Coal Seams: Am. Jour. Sci., iii, vol. vii. 1X74, p. 367. 



On the Lignites and Plant Beds of Western America: Am. Jour. Sci., iii, vol. vii. 

 1874, p. 399. 



Geological Report, accompanying Report of the Exploring Expedition from Santa 

 1<Y', New Mexico, to the Junction of the Grand and the Green Rivers, in 1859, 

 under Captain J. M. Macomb: Washington, 1876, 4to, pp. L52, pi. lit. 



Causes of the Cold of the Ice Period : Pop. Sri. Monthly, ix, p. 280, July, 1S70. 



Geological Survey of Ohio : vol. iii. Geology, Preface. Review of Ohio Geology 

 and Local Geology of Tuscarawas. Columbiana, Portage, Stark, Jefferson and 

 Mahoning counties. 1S7S. 



Geological History of New York Island and Harbor: Pop. Sri. Monthly, October, 

 ls;s. and reprint, pp. 20. 



The Geological Survey of the Fortieth Parallel: Review, P.n>. Sci. Monthly, July, 

 1879. 



I renesis of the Ores of Iron: School of Mines Quarterly, vol. ii. November, 1880. 



The Genesis and Distribution of Gold : School of Mines Quarterly, vol. iii, Novem- 

 ber, 1881, p. 5. 



The Origin and Drainage of the Great Lakes: Proc. Amer. Phil. Soc, December, 



I SSI . 



Geological Observations in Montana. Idaho, Utah and Colorado: Trans. X. Y. 



Acad. Sci., vol. i, 1881, p. 4. 

 Volcanic Rocks of Oregon and Idaho: Trans. X. Y. Acad. Sci., vol. i, 1881, p. •">:;. 

 Geology of the Mammoth Cave: Trans. X. )'. Acad. Sci., vol. i. 1881-'82, p. 65. 

 II\ pothetical High Tides as Agents of Geological Change: Trans. X. )'. Acad. Sri.. 



vol. i. no. 4, 1882, p. so. 

 Hypothetical High Tides: Nature, vol. xxv, no. 16, February, 1882, p. 357. 

 Hypothetical High Tides: Nature, vol. xxvi. 1882, p. 56. 

 Origin and Relations of the Carbon Minerals: Abstract, Trans. X. )'. Acad. Sci., 



1882, pp. 100-111 : Annals X. V. Acad. Sci.] vol. ii, p. 267. 

 The Origin of the Carbonaceous Mattel- in Bituminous Shales : Annals N. )'. Acad. 



Sri., vol. ii. 1882, p. 357. 

 <tn the Origin of Crystalline Iron Ore-: Trans. X. V. Acad. Sri., vol. ii. 1882. 



p. L3. 

 The Evidences of Glaciation in North America: Trans. X. )'. Aral. Sri., vol. ii. 



1882 '83, i'. L55. 

 Botany and Geology of the Country Bordering the Rio Grande: Trans. X. )'. 



Acad. Sri., vol. vii, 1883, p. '.to. 

 Richthofen's China : Am. Jour. Sri., iii, vol. xxvi, 1883, p. L52. 

 The Physical C litions under which Coal was Formed: School of Mines Quarterly, 



vol. iv. no. ::. April. L883, p. L69. 



