HISTORICAL SKETCH. XXXI 



Henry Youle Hind. 



1859. Reports of progress: together with a preliminary and general report on the 

 Assiniboine and Saskatchewan exploring expedition, made under instructions from the Pro- 

 vincial Secretary, Canada. By HENRY YOULE HIND, M. A., Professor of Chemistry and 

 Geology in the University of Trinity College. Toronto, 4to, with maps and plates, pp. 

 201, 1859. 



This valuable report, which is too often ignored by later travelers in making their 

 reports on the region, gives definite information concerning the paleontology of the rocks 

 on the western side of lake Winnipeg, accompanied by detailed sections of the strata. 

 "Nearly the whole length of the western coast of lake Winnipeg is composed of lime- 

 stones, sandstones and shales of Silurian age." These are assigned to the Chazy, Birds- 

 eye, Trenton and Hudson River formations. The Chazy is a crumbling sandrock (the St. 

 Peter sandstone of Owen). The Hudson River group is seen in cliffs 25 feet high at Stony 

 Fort, on the Red river. He quotes the description of Owen who visited and reported on 

 the Red River settlements in his final report on Iowa, Wisconsin and Minnesota, (p 181 ) 

 in 1852. The fossils reported by Owen, from Lower Port Garry are: Pavosites basaltica, 

 Coscinipora sulcata, hemispherical masses of Syringopora, Chsetetes lycoperdon, a 

 Conularia, a small, beautiful undetermined species of Pleurorhynchus, Ormoceras bron- 

 gniarti, Pleurotomaria lenticularis (?), Leptaena alternata, Leptsena plano-convexa (?), 

 Calymene senaria, and several specimens of the shield of Illaenus crassicauda. 



"Many of these are identically the same fossils which occur in the lower part of Formation 3 in Wis. 

 consin and Iowa, in the Blue limestones of Indiana, Ohio, Kentucky and Tennessee, and also in the 

 Lower Silurian of Europe." 



In this report Mr. E. Billings, paleontologist of the Canadian survey, contributes a 

 chapter on the paleozoic fossils, describing two new Silurian species, viz,, Modiolopsis 

 parviuscula, and Orthoceras simpsoni. These and the other fossils named by him are 

 considered sufficient to show that the beds containing them are probably about the age of 

 the Chazy and Black River limestones. 



James Hall. 



1861. Report of the Superintendent of the Geological Survey of Wisconsin, exhibiting 

 the progress of the work, Jan. 1, 1861. By JAMES HALL; Madison, 1861. 



This report is devoted almost entirely to the description of fossils of which the follow- 

 ing are from the Trenton, Galena and Hudson River: 



Receptaculites owe.nl Hall. "In the Galena limestone of Wisconsin, northern Illinois and the eastern 

 part of Iowa this fossil is everywhere present and is the most marked and characteristic form 

 in the rock." 



Receptaculites iowene Owen. Galena limestone. 



Receptaculites fungosum Hall, Galena limestone. 



Receptaculites globulare Hall. Galena limestone. 



Graptolithus (Diplograptus) peosta Hall. Hudson River shales. 



Dictyonema neenah Hall. Trenton limestone. 



Buthograptus laxus, n. sp. Trenton limestone. 



Tellinomya inflata, n. sp. Trenton limestone. 



Tellinomya aita, n. sp. Trenton limestone. 



