238 Scientific Intelligence. 



• 



belong properly to the Utica Slate. Very little slate has been 

 observed in the Calciferous, and this in the upper part of Divi- 

 sion E. 



The Birdseye formation is very scantily represented in Ver- 

 mont. A rock covering a few square rods containing Phytopsis 

 tiibulosum Hall, is found in Benson. The fine-grained limestones 

 so like the Birdseye in texture must be distributed among the 

 strata below. Part will go to Calciferous B, a part to Calciferous 

 D. Here come the Fort Cassin rocks. Middle Chazy will take a 

 small part; upper Chazy much more. Calymene multicosta 

 Hall, with its associated fossils, belongs here in the upper Chazy. 

 The fine-grained limestone which holds this interesting group of 

 fossils is still beneath seventy-five feet of Rhynchonella rock. 

 Above this, if anywhere, the Birdseye should appear. 



Attempt is not made to correlate the Calciferous of the Cham- 

 plain Valley with that of the western States. Rocks of similai* 

 Calciferous character appear in the valleys of the Hudson and St. 

 Lawrence, as well as that of the Champlain; suggesting that the 

 same physical conditions of sedimentation and like forms pre- 

 vailed. The deposits marking the position of an ancient sea 

 beach not far from the borders of the Archsean terrane. 



3. Geological Survey of Canada, Annual Report for the 

 year 1887-88; Alfeed R. C. Selwyn, Director. Vol. Ill, New 

 Series, Parts i and ii. — This Report, after a general review of the 

 work and results of the year by Dr. Sel wyn, contains first a Report 

 by G. M. Dawson on an exploration of the Yukon District, and an 

 adjacenj part of British Columbia,- treating of its geography, 

 climate, resources and geology, and, in appendixes, of its vegeta- 

 tion, Indian tribes, zoology, rocks and meteorology. Mr. Dawson 

 states that the Coast Ranges have an interrupted granitoid axis- 

 consisting of granite and granitoid rocks) from Eraser's River 

 northwestward to the 60th parallel, about 900 miles ; and that the 

 formations of British Columbia in general continue northwest- 

 ward, with little variation. West of the Coast Range in the Coast 

 Archipelago near Wrangell, Juneau and Sitka, occur argillites 

 which, as fossils have not yet been detected, may be provisionally 

 classed as Triassic. East and northeast of the Coast Range the 

 rocks are largely Paleozoic. On the Dease, the Frances, and on 

 Tagish Lake, Carboniferous limestone is found containing Fusulina,. 

 like that of British Columbia ; this rock occurs along a belt of 

 800 miles or more. Granitic areas occur over this area in two 

 ranges; one from Dease Lake (130° W. and 58|° N.) to 40-mile 

 Creek (141° W. and 64£° N.) and the other east of Frances Lake- 

 (129° W. and 61° N.) and Pelly Lakes (129|° W. and 62° N.);. 

 The rocks resemble the Archsean granites of the Gold Range" of 

 British Columbia. Triassic rocks were found on the Stikine 

 River at Glenora, and Cretaceous and Laramie on the lower part 

 of the Lewes on Lake Labarge and elsewhere. Jade was met 

 with in large masses in the gravels of the Lewes. 



