Revteivs — Geological Survey of Canada. 521 



Cliazy Limestone. 



CUazy Shale. 



Calciferous. mostly dolomite. 



Potsdam Sandstone. 



Archsean. 



The more recent fossils collected in the district were tabulated 

 by Dr. H. M. Ami, and form a valuable appendix to the report. 

 Some interesting plates, showing both natural and artificial sections 

 in the Chazy, Trenton, and Black Eiver formations, serve as 

 illustrations. 



Eeport I, by E. D. Ingall, contains an account of the iron-ore 

 deposits along the Kingston and Pembroke Eailway in Eastern 

 Ontario, in portions of the counties of Frontenac, Lanark, Renfrew, 

 and Leeds. A general map accompanies the report, showing the 

 location of the deposits examined. 



Another report (J), by Dr. Ells, treats of the geology of 

 Argenteuil, Ottawa, and part of Pontiac counties, province of 

 Quebec, and portions of Carleton, Russell, and Prescott counties, 

 province of Ontario. The area included in the map, which is drawn 

 on a scale of four miles to an inch, is not far short of 4,000 square 

 miles. The formations met with south of the Ottawa River are the 

 following ; — 



Utica Shale. 



Trenton Limestone. 



Black River Limestone. 



Chazy Limestone and Shale. 



Calciferous Dolomite. 



Potsdam Sandstone. 



Attention is given to the economic minerals, which include 

 apatite, asbestus, graphite, iron, mica, barite, felspar, building 

 stones, ochres, peat, and granites. An appendix by Dr. Ami, 

 containing lists of fossils obtained from the formations along the 

 Ottawa River, concludes this report. 



Report M, by R. Chalmers, refers to the surface geology shown 

 on the Fredericton and Andover quarter -sheet maps. New 

 Brunswick, and deals with the character of the soils, whether 

 these were formed by the disintegration and waste of the under- 

 lying rocks, or consisted of Boulder-clay or of the later modified 

 deposits. The report also deals with the agricultural capabilities 

 of the area and with the extent of the forests covering it. The 

 coloured maps are drawn on a scale of four miles to an inch. 



Report appears to be of exceptional interest and value ; it 

 consists of " Notes on certain Arch^an Rocks of the Ottawa 

 Valley," by Professor A. Osann, of Miilhausen, Alsace, who, in the 

 Autumn of 1899, made a series of geological excursions in that part 

 of the province of Quebec north and east of Ottawa, in some of 

 which he was accompanied by Dr. Ells and Mr. Ingall. " The 

 object of these excursions was, on the one hand, to become 

 acquainted with some of the principal types of gneisses and their 



