No. 5.] NATURAL HISTORY SOCIETY. 315 



A paper " On some Silurian and Devonian fossils collected by 

 Dr. Bell in Manitoba and Hudson's Bay," was read by Mr. 

 Whiteaves. After stating that Prof. D. Dale Owen, in 1851, 

 had shown that the limestones of Lower Fort Garry were of the 

 same aj^e as his Upper Magnesian limestone, now known as the 

 Galena limestone, from the quantities of lead ore that it contains, 

 the lecturer exhibited fossils from St. Andrews, Manitoba, and 

 from various localities in the valleys of the Nelson and Churchill 

 Rivers, collected by Dr. Bell, and claimed that they belonged to 

 the same geological horizon as the Galena limestone of Wisconsin 

 and Iowa. In Quebec, Ontario, and the State of New York, the 

 Utica shale intervenes between the Hudson River group and the 

 Trenton limestone, but in Manitoba and in the country between 

 it and Hudson's Bay, the equivalents of the Galena limestone 

 take the place of the Utica shale. The mass of Stony Mountain, 

 Manitoba, was shown to consist of typical Hudson River rocks, 

 which overlie directly and conformably the equivalents of the 

 Galena limestones, so that the age of the latter can be estab- 

 lished on stratigraphical as well as on palaeontological grounds. 

 At Fort Churchill and at two localities on the Nelson River some 

 fossils were found which appear to be either of Upper Silurian or 

 Devonian age, and at York Factory two corals were found which 

 are certainly Devonian, but as these latter were found loose they 

 may have drifted from a long distance. 



Mr. Selwyn reviewed the subject generally, and Dr. Bell fol- 

 lowed, describing the geographical distribution of the palaeozoic 

 rocks of Hudson's Bay, and their relations to the occurrence of 

 economic mmerals. He showed that in the southern part of 

 this region the Upper Silurian formation rests directly upon the 

 Laurentian, while to the north and west we have the Lower Sil- 

 urian. The importance of palaeontology in relation to economic 

 geology was well illustrated in the present case where, as Dr. 

 Bell pointed out, the determination by means of fossils of the 

 identity of limestones of the Nelson Valley with the lead-bearing 

 formation of the Western States may lead to important results. 



Principal Dawson then read a paper written by Dr. B. J. 

 Harrington entitled " Notes on Chrome Garnet, Pyrrhotite and 

 Titaniferous Iron Ore," which we publish in full. 



Previous to the close of the meeting the question of holding 

 the annual Field Day was discussed, and a proposition to go to 

 Yamaska Mountain was referred to the Field Day Committee. 



