666 REPORT— 1897. 



andient sediments. The other set, intimately associated with these, is of igneous 

 origin, and comprises numerous and very extensive intrusions, both acid and basic 

 in character, -which were probably injected at widely separated times. Those 

 masses which were first intruded, and have been subjected to all the subsequent 

 squeezing and metamorphism, are now represented by well-defined and apparently 

 interstratified augen-gneisses and granulites ; others, intruded at later periods, 

 though showing the effects of pressure, retain more or less of their massive 

 character ; while still others, which have been injected since all movements ceased, 

 are recognised by all as undoubted igneous intrusions. 



7. Report on Fhotographs of Geological Interest. See Reports, p. 298. 



WEDNESDAY, AUGUST 25. 



1. Joint discussion with Section H. on ' The First Traces of Man in 

 America.' 



2. Exldhition of the Ferrier Collection of Minerals 

 in the Biological Museum. 



3. Exhibition of tJie Collection of Canadian Fossils in the 

 Museum of the School of Practical Science. 



4. Exhibition of a Collection of Devonian Fossils from Western Ontario 

 in the Section Room. By Dr. S. WootVERTON, London, Ontario. 



5. Exhibition of a Collection of British Geological Photographs 

 in the Section Boom. 



