148 LAND AND FRESH WATER MOLLUSKS 



Cockerell, T. D. A., continued. 



1891 The Slugs of British Columbia. The Nautilus, v, No. 3, July, 1891, pp. 

 30-32- 



Cooper, William. 



1834 List of Shells collected by Mr. Schoolcraft in the Western and North- 

 western Territory. Schoolcraft's Narrative of an Exp. to Itaska Lake, 

 App.,pp. 153-156, 1834. 



Dall, W. H. 



1885 Contributions to the Natural History of the Commander Islands, No. 



in. Report on the Mollusca of the Commander Islands, Bering Sea, 



collected by Leonhard Stejneger in 1882 and 1883. Proc. U. S. Nat. 



Museum for 1884, vii, pp. 340-349, 1885. 

 1885 New or specially interesting Shells of the Point Barrow Expedition. 



Proc. U. S. Nat. Museum for 1884, vii, pp. 523-526, 1885. 



1885 Report of the International Polar Expedition to Point Barrow, Alaska. 

 Washington, Government Printing Office, 1885, 4. Natural History, 

 part vi. Report on the Mollusks, pp. 177-184, with plate. 



1886 Report on the Mollusks collected by L. M. Turner at Ungava Bay, 

 North Labrador, and from the adjacent Arctic seas. Proc. U. S. Nat. 

 Museum for 1886, ix, pp. 202-208. 



1886 Contributions to the Natural History of the Commander Islands, No. 

 vi. Report on Bering Island Mollusca collected by Mr. Nicholas Greb- 

 nitzki. Proc. U. S. Nat. Museum for 1886, ix, pp. 209-219. 



1899 The Mollusk-Fauna of the Pribiloff Islands. Extract from The Fur- 

 seals and Fur-seal Islands of the North Pacific Ocean. Washington, 

 Government Printing Office, 1899. 4, Part in, pp. 539-545, and map. 



1905 On the relations of the Land and Freshwater Mollusk Fauna of Alaska 

 and Eastern Siberia. Popular Science Monthly, vol. LXVI.NO. 4, Feb., 

 I 95 PP- Sfo-S 66 - 



Dawson, George Mercer. 



1875 Land and Fresh Water Mollusca, collected during the summers of 1873- 

 1874, in the vicinity of the Forty-ninth Parallel, Lake of the Woods to 

 the Rocky Mountains. British North American Boundary Commission, 

 Report on the Geology and Resources of the region in the vicinity of 

 Forty-ninth Parallel (etc), 1875, App. E., pp. 347-350. 



(? Dawson, J. W.) 



1857 Description of some of the Freshwater Gastropods inhabiting the lakes 

 and rivers of Canada. Canadian Naturalist, n, No. 3, 1857, pp. 195-215. 



D'Urban, W. S. M. 



1859-60 Observations on the Natural History of the valley of the Riviere 

 Rouge and surrounding townships in the Counties of Argenteuil and 

 Ottawa. Canadian Naturalist, iv, No. 4, Aug., 1859, pp. 252-256; v, 

 No. 2, Apr., 1860, pp. 81-99. 



Dybowski, W. 



1901 Studien ueber die Mollusken des Amur-gebietes. Nachrichtsbl. d. 

 Deutschen Malak. Ges., xxxin, pp. 129-144, Oct. 1901. 



