THE 



CANADIAN RECORD 



OF SCIENCE. 



VOL. IX. JANUARY, 1903. No. 1. 



On the Petrographical Relations of the 



Laurentian Limestones and the Granite 



in the Township of Glamorgan, 



Haliburton County, Ontario. 



By Louis Caryl Graton, B.S. 



CONTENTS. 



General Statement. 



Petrography. 



Gneissic Granites. 



Gray Gneissic. 



Altered Limestones. 



Pyroxene Gneisses. 



Amphibolites. 



Inclusions in the Altered Limestones. 



Hypotheses and Discussions of the Origin and Relations of 



the Various Rocks. 

 Summary. 



GENERAL STATEMENT. 

 The region with which this paper deals lies in Central 

 Ontario, near the southern margin of the sxeat Northern 

 Protaxis of the continent. It is situated in the south- 

 western corner of sheet 118 of the Ontario series of 

 maps being prepared by the Geological Survey of Canada. 



