THE KOSENFELD AETESIAN WELL. 79 



River Valley, and the elevation is the same as at Humboldt, within 1 foot, 

 the railway at Rosenfeld, 3 feet above the ^urface at the well, being- 796 

 feet above the sea. A summary of the section of this well, according to 

 records and samples of the boring supplied by Mr. W. E. Swan, who drilled 

 it,' is as follows: 



Section of an (triesian well, Rosenfeld, Manitoba. 



Feet. 

 Black soil 4 



Fiue silt or clay, alluvial aud lacustrine iu its upper portiou, but below probably 



including a considerable thickness of bowlder-clay or till Ill 



Sand and gravel 10 



Bowlder-clay ("hardpan") 12 



Bowlders 6 



Gray shale 62 



Cream-colored or buif limestone 15 



Bed shale 5 



Gray shale 10 



Cream-colored limestone, beneath which was encountered a small artesian flow 



of salt water 30 



Fine gray sandstone or sandy shale 40 



Clialky limestone, varying in color from white to pale greenish and reddish gray. 30 

 Bed shale, containing much subaugular quartz, in grains which are very irreg- 

 ular in size, some being quite coarse IGO 



Cream-colored magnesiau limestone, beneath which came an additit)nal artesian 



flow of salt water 305 



Eed shale, with much quartz in subaugular grains 75 



Soft sandstone, consisting of rounded and polished quartz grains, white, but 

 reddish in the drillings from its upper portion, apparently because of 

 admixture of the overlying shale; yielding a large artesian flow of salt 

 water, the supply of which was increased to four times its previous quan- 

 tity 50 



Dark-red shale, with greenish-gray interlamiuations 50 



E-eddish and greenish shale 25 



'Published by Prof. N. H. Winchell in the Fourteenth Annual Report of the Geol. and Nat. Hist. 

 Survey of Minnesota, for 18S5, i). 15; aud by Dr. G. JI. Dawson, "On certain borings iu Manitoba 

 and the Northwest Territory,'' Trans. Roy. See. Canada, Vol. IV, sec. 4, 1886, pp. 85-91. Dr. Dawson 

 supplements the brief record kept by Mr. Swan with many descriptive notes from his examination of 

 the samples; aud his identification of the lower formations, which this well has in common with the 

 Humboldt and Grafton wells, is here followed. The strata above the Galena limestone were referred 

 by Dawson wholly to the Hudsou River epoch; but comparison with the Morden well indicates that 

 they probably include not only Hudson Eiver beds, but also the Niagara and other Upper Silurian 

 formations, nearly or quite to the base of the Devonian. 



