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group. Am. nat. 16:711-15, fig. a-e. 1887. 

 Niagara shales of western New York; a study of the origin of their 



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soc. Bui. 30:226-54, 6 fig. 1898. 

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Great lakes of North America. Am. ass'n adv. sci. Proc. 30:131-46. 1882. 



Discovery of the pre-glacial outlet of the basin of Lake Erie into 



that of Lake Ontario, with notes on the origin of our lower Great 

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Traces of beaches about Lake Ontario. Am. jour. sci. 24:409-16, 



pi. 6, 7. 1882. 



Paleozoic and surface geology of the region about the western end 



of Lake Ontario. Can. nat. n. s. 10:129-71, 213-36, 265-3112. 1883. 



Terraces and beaches about Lake Ontario. Am. ass'n adv. sci. 



Proc. 3i:359-63- 1883. 



Age of the Niagara river. Am. nat. 21:269-70. 1887. 



The Iroquois beach, a chapter in the history of Lake Ontario. 



Abstract, Science. 11:49. 1888. 



The St Lawrence basin and the Great lakes. Abstract, Can. rec. 



of sci. 3:232-35. 1888; Science. 12:99-100. 1888; Sci. Am. sup. 

 26:10,671-72. 1888; Am. geol. 2:346-48. 1888; Am. ass'n adv. sci. 

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ass'n adv. sci. Proc. 37:197, 198. 1889. 

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— The deformation of the Iroquois beach and birth of Lake Ontario. 

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— The northwestern extension of the Iroquois beach in New York. 

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— Deformation of the Algonquin beach, and birth of Lake Huron. 

 Am. jour. sci. 3d ser. 41:12-21. 1891. 



