HOXEYMAN NOVA SCOTIAN GEOLOGY. 113 



striking fact. Passing eastward we cross the harbour to McNab's 

 Island. On its western side are abundance of triassic amygdaloids 

 with~Z^eolite8, heulandite and stilbite. These have all come from 

 the drift bank, and originally from the Bay of Fundy or Minas 

 Basin. We have here also abundance of syenites, diorites and 

 porphyries. These have come from the Cobequid Mountains. In 

 addition to these are conglomerates and sandstones of carboniferous 

 origin. These have been derived from the carboniferous of our 

 line of section. The nearest primary source of these is 33 

 miles N. W. 



Crossing the Eastern passage, we find on the shore boulders of 

 triassic amygdaloid, having besides zeolites, amygdals of chalcedony, 

 and also limestone boulders, which have the appearance of lower 

 carboniferous limestones, although they do not show fossils. Lime- 

 stone boulders were also observed at our starting point at the N. 

 W. Arm, but as the bank is the site of a Battery, I did not attach 

 special importance to their occurrence. 



Still farther to the East is Cow Bay. On the extensive and 

 beautiful beach beautifully rounded boulders of quartzite are very 

 abundant. Some of these contain groups of large cubical crystals 

 of iron pyrites. Interspersed with these are boulders of triassic 

 amygdaloid. These first attracted my attention on June 24, 1873, 

 the Queen's Birth Day. 



When wandering on the beach on a holiday excursion, Mr. 

 Stirling and I observed the amygdaloid boulders. I at once 

 expressed the opinion that some vessel from the Minas Basin had 

 discharged them in the offing. As we proceeded eastward the 

 abounding amygdaloids, with the addition of syenites, diorites, 

 gneisses, limestones with fossils, sandstones with fossils, at once 

 rendered the opinion advanced improbable. Beaching the east part 

 (Red Head) the immediate source of the supply of strange boulders 

 was at once apparent. This lofty clay bank (50 feet in height) 

 was replete with amygdaloids, and all the variety of boulders 

 observed on the beach. Enormous masses of quartzite were also 

 discharged. Many of these were strikingly furrowed and striated 

 on varying sides. The aid of the photographer was desiderated to 



