93 



Mr. M. F. Connor has made an analysis of this 

 corundum-syenite-pegmatite from Craigmont, Ont., the 

 results adjusted to a basis of ioo being given under I. 

 For purposes of comparison the analysis of the corundum- 

 syenite-pegmatite, and of the corundum-syenite from 



Corundum enclosed in museovite "red syenite". Just west of Blue Mountain, Methuen, Ont. 

 X 56 diam. Bet. crossed nicols. 



Nikolskaja Ssopka in the Urals, Russia, are included under 

 II and III. (Tschermak's Min. und Pet. Mittheil,. 

 XVIII, 1898, p. 219). Under I (a) is given the analysis of 

 I, omitting the corundum and adjusting it to a basis of 

 100. Under II (a) and III (a) are similarly included 

 analyses of II and III, in which the corundum is neglected 



