472 Canadian Record of Science. 



carried out at McGill University," by Prof. Frank Dawson 

 Adams, Montreal, Canada. 



" A preliminary paper on this subject was read before 

 the Geological Society at the Montreal meeting in 1897. 

 Since that time the work has been continued and additional 

 results have been obtained. The deformation of marble 

 has been chiefly studied. The rock has been submitted 

 to pressure under conditions which reproduce those obtain- 

 ing in the deeper portion of the earth's crust. The 

 deformation has been carried out not only when the rock 

 is dry and at the ordinary temperature, but also when it is 

 heated to 300° C. and 400° C. Also when at 300° C. in 

 the pressure of water. Deformed at a temperature of 

 300° C. or 400° C. the movements which take place in the 

 rock differ from those which are observed when it is 

 deformed at the ordinary temperature. They are identi- 

 cal with those which are observed in the ' flow ' of metals 

 under compression." 



The experimental methods were carefully described, and 

 the results obtained illustrated by means of lantern slides 

 and specimens. 



Dr. Adams's paper was discussed by Prof. Gr. K. 

 Gilbert, Prof. W. Morris Davis and Prof. K S. Shaler. 



2. " The Laurcntian Limestones of Baffinlaiid," by Dr. 

 Eobert Bell, Ottawa. 



" The discovery of great quantities of crystalline lime- 

 stones in Baffinland was announced in the writer's sum- 

 mary report of explorations for 1897. The geographical 

 position and physical aspect of the region is then described. 

 General character of the Laurentian in Hudson Straits. 

 The rocks of the north side are newer or Ui^per Laurentian 

 as far as Icnown, and differ from those on the south shore. 

 Eegularity of strike and dip. Enormous development of 

 crystalline limestones in southern Baffinland. Their gen- 

 eral characters. Great thickness of the beds, some of 

 them being over a mile and running regularly for long 



