[how.\rd] some outliers OF THE MONTEREGIAN HILLS 



93 



Analyses of the F our chile at Ste. Dorothée and the Essexites of the 

 Neighbouring Monteregian Hills 



Norms 



XI Essexite, Mount Johnson, by N. N. Evans, II. 5. 3. 4 



XII Essexite, Mount Royal, M. F. Connor, III. 6. (3) 4. 4. 2. 2. "3. 2 



XIII Olivine Essexite, Mount Royal, M. F. Connor, (III) IV. 2. 2. 2. 2 



XIV Olivine Pyroxenite, St. Bruno, M. F. Connor, IV.l".2 (3). 2.2 



V Fourchite, Ste. Dorothée, W. V. Howard (II) III. 5. (2)3. 4. "3. 2. 2" .3 



Thus the Ste. Dorothée intrusive is, in all probability, contem- 

 poraneous with the earlier intrusives of the Monteregian Hills, and, 

 therefore, earlier than the more basic alnoitic intrusions which sur- 

 round it. 



Summary and Conclusions 



This paper consists largely of a petrographical description of 

 five igneous intrusions which lie to the west of Montreal, and which 



