148 Scientific Intelligence. 
saltum, and more or less localized along lines of especial weakness, 
oints consta antly displaced by these very acts. The effects 
; re 
volcanoes, and their general parallelism to great mountain chains, 
thus also finds its natural explanation. The volcano is a safety 
valve for the earthquake, in so far as its activity prevents the 
accumulation of virtual ene to the extent that on sudden 
yielding, widely destructive ostnolyems would ensue. 
A 
. 
parallel train of reasoning per to the moon at once ex- 
theory may be regarded as a true interpretation of Nature. 
E. W. H. 
2. Geology of the Cobequid Mountains, Nova Scotia ; by D. 
Honeyman. (From = ee of the Nova Santis Insti- 
tute of Natural Science.)—The ailway opens up in a beautiful 
manner the geological cece of the Cobequid mountains. e 
most instructive part of the section is that which traverses the 
mountains on the Cumberland side of the county line. The cen- 
tral or syenitic formation extends along the line of railway a dis- 
tance of 24,000 feet; of this 12,900 feet is in the county of Cum- 
berland. On either side of this is the Lower Silurian. On the 
Colchester side this formation has its largest development, hav- 
ing a width of 10,400 feet. On the Cumberland side the width 
pideous and win peaaie tae al. ‘The last ¢ rrespond ex exactly with t 
Sey conglomerates of Canada, which are cop panini: 
contain abundance of fossils. of older forms than any yet found in 
Nova Scotia ese are in t t state of preservation. 
Graptolites of the most delicate and = forms are in a stat 
of preservation aioe in such rocks. ilobites and Lin- 
This important discovery, made by the author on ‘the 17th of 
September, ra solved a very important problem regardin the 
ge and succession of the older metamorphic rocks of ip: 
Scotia and One Breton, and possibly also of New Brunsw 
The vertical thickness of the fossiliferous and interbedded dior 
. 
