39 
fate meniei ie e).e) (ele) (6, (6) (0 |e: (0,0; (0, je, 6 Jv. <e 
Siete! elie) ielenie; je .ic ic) eye (0° asie! oe: (el 1e;.0 
wegiel eo la) jell ol.e) 10] (alge) .e; sie) (v, 19) eo. .0 (0, Jee 
a(pet ie! (oe ae eel ie (0; © ie<6, ‘0 ce! ‘oe (6 tie <0) j° 
mS e oy 6) (egie) (o seo (0) (e, (o> 0) (6, je) la ‘6 <0: je) (0: (e. 
“Cn Vielivianaies ie) (2! eile) ie: e,e: (6) (6. =) 5s) e) 0. «= 
wives ele waa! leo 0) «#0 «, 6) 0) 0, 6 © « @ 
AEstie ol sikmuia a) jee) le, im (0) | (0) '6) 0. ve) “eo 
Ee (above 110° €.)....... 
Beene TiO” C.yer |. x. 
I 
Essexite 
near Look- 
out, Mount 
Royal. 
(M. F. Con- 
nor). 
II 
Olivine 
essexite 
(Montrealite) 
Céte des 
Neiges Rd. 
Mount Royal 
(M. F. Con- 
nor). 
44-66 
Ill 
Hornblende 
in essexite. 
Protestant 
Cemetery, 
Mount Royal 
(Bo ey. Har 
rington). 
O93 
THE NEPHELINE SYENITE. 
This rock is much lighter in colour than the essexite, 
being relatively richer in salic constituents. It is usually 
grey in colour and of medium grain. 
It is, furthermore, 
nearly uniform in size of grain and does not display the 
rapid variations in texture which often characterize the 
essexite. 
It is composed essentially of orthoclase, nepheline 
and hornblende; pyroxene and mica are often associated 
with the hornblende; while the following minerals have 
