104 INFLUENCE OF GEOLOGICAL FORMATION. [Dec. 



the principal species of trees fouud around this spot were Abies sub- 

 al'[ima, Picca Engclmanni, and Larix Lijdli. Several sawmills are 

 already busy preparing timber for railway purposes. The work of 

 construction in the Kicking-Horse Pass, was located, staked out, and 

 graded since last March. Our next diagram represents the end of 

 the track last autumn ; but the progress onwards is even now Ijeing 

 accelerated. At present eight car-loads of oats, seven car-loads of 

 hay, and nearly tliree car-loads of flour comprise the weekly susten- 

 ance for the pioneer workers, carried on mules' backs across the 

 mountains. The entire location to Kamloops is nearly finished, and 

 it is anticipated that before the close of this year the finished track 

 will stretch some thirty miles beyond the Kicking-Horse Pass. 



INFLUENCE OF GEOLOGICAL FORMATION ON FOREST 

 GROWTHS IX NEW BRUNSWICK. 



BV EDWARD .JACK, NEW BRUNSWICK. 



"TXTE are too apt to e.xpect the same results, in so far as the 

 T T growth of forest trees is concerned, from one piece of land 

 that we do from another, without regard to the rock structure from 

 which by disintegration various soils have been derived. Scientific 

 agriculturists have been studying the food most essential to the 

 support of plant life, by way of experiment, now withholding from 

 the plant one element seemingly essential to its growth, then 

 another, watching and carefully chronicling the different results thus 

 obtained, so that by such means they may attain as much knowledge 

 of the workings of nature regarding this subject as possible. 



Now that the forests of even the New World are disappearing so 

 fast, it might not be amiss if a little attention were paid to the same 

 subject, in so far as the growth of our forest trees are concerned. 

 Such an investigation would bring before us prominently the influence 

 which different geological formations exercise on the growth of 

 different trees. It is to this that the following remarks, in so far as 

 New Brunswick is concerned, will be directed. The formations 

 which in that country have the most marked influence on the growth 

 of forest trees are Lower Silurian and Inferior Pocks, Upper SUurian 

 and Lower Carboniferous, Millstone Grit and Boulder District. 



LOWER SILUKIAX AND INFERIOR KOCKS. 



The first of these, which are largel}- developed in the shape of 

 hard crystalline slates, porphyrites, and other intrusive rocks, occur 



