326 ROYAL SOCIETY OF CANADA 



with two iron horizons. The Upper iron horizon is largely a cherty 

 iron carbonate, the lower band is distinguished by the presence of 

 granules. The Keeweenawan lies unconformably on both the Animikie 

 and the Lower Huronian. The formation consists of conglomerates, 

 sandstones and marls. The Animikie and Keweenawan are intruded 

 by sills of diabase (R. Ruedemann). 



(29) Wells, J. Waltee. — The occurrences of limestones within the province 



and a large number of analyses of these rocks are given. 



(30) Wells, J. Walter. — The report contains an account of the distribution 



and character of the clays and shales and a number of chemical analyses 

 of them. 



(31) Wllson, a. W. G. — The section occurs along the north shore of the lake, 



the last eight miles are mapped and described in detail. Wherever 

 the deposits are seen resting on bed-rock, the lowest portion consists 

 of a clay till carrying boulders and pebbles. In places the lower till 

 is overlain by stratified sands and these, in turn are sometimes followed 

 by a sheet of till, in part stratified. The upper sheet sometimesi rests 

 unconformably on the lower. In the portion of the .section described 

 in detail, the lower sheet of till, except at one end of the section, is 

 succeeded by the stratified sands, the whole capped by the upper till 

 .«sheet. Within the sands, between the upper and lower till sheets, 

 occurs a non-continuous till sheet, dividing the deposits into two sets, 

 belonging to two interglacial epochs. After the deposition of the sands 

 of the second iruterglacial epoch, there followed a period of unequal 

 erosion during which the continuity of the middle till sheet was destroyed 

 and, in places, the erosion was deep enough to allow the last till sheet 

 to be deposited immediately on the lowest. The greatest measured 

 thickness of the deposit is about 130 feet. 



(32) Woodman, J. E. — The author contrasts the bedded gold-bearing quartz 



veins of the eastern poPtion of the gold-bearing .series of Nova Scotia 

 with the saddles of Bendigo. In the former case the veins occur in 

 zones which are situated within domes, usually those having a high 

 angle of pitch, and these domes are irregularly distributed along a 

 series of east and west anticlines. The domes occur in discontinuous 

 slate horizons lying in a quartzite formation. The zones of veins are 

 confined to the slate measures and, therefore, have a limited lateral 

 extent, the veins are continuous in certain cases to considerable depths 

 dei>ending on the amount of erosion the dome has suffered. 



(33) Young, G. A — A summary report on the season's work. The districC 



contains large areas of Keewatin schists penetrated by granite, tha 

 latter cut by a body of syenite. The schists and granite are overlain 

 by a conglomerate and slates of Huronian age and these are capped 

 by sills of diabase. 



f,';EnCfc:vt Library, 



NEW YORK. 



