346 GEOLOGICAL GLEANINGS—HONEYMAN. 
of Devonian age. We have now these rocks beautifully exposed 
in the rear by the construction of the railway. On leaving 
Tracadie we took our stand on the platform of the car that we 
might make a kind of reconnoissance of the railway sections. We 
observed interesting sections of rocks, and especially the Poreu- 
pine’s back, extending onward to the Strait of Canso, ruddy with 
the outcrops of its Syenitic masses. We hope to be able to make 
a more satisfactory examination of this section at some future 
time. Our route now was from Port Mulgrave to Baddeck by 
the steamer “Marion.” We observed with interest the ex- 
posure of rocks, especially on the Nova Scotian side of the 
Strait of Canso, and compared them with those of the 
Cape Breton side. Our next point of chief interest was 
St. Peter’s Canal, and the approach to it. The aspect of 
the Canal was in striking contrast with that in 1861. Then 
it was only an unsightly work. Now it is finished and of great. 
utility. Its walls of igneous Diorite are of great geological interest.: 
To me they were specially interesting, although the sight was 
very transitory. I had previously made a very close acquaint-’ 
ance with these rocks, through a fine collection of specimens pre- 
sented to our Provincial Museum. Of one of these I had> a 
microscopic section prepared by A. A. Julien of New York. This 
was subjected to a Polariscopic examination, and the results com- 
municated to the Institute of Natural Science. ; 
After clearing the Canal we turned our eyes in the direction 
of “Marble Mountain,” of the East Bay Archean range. We’ 
discovered, 2n a@ manner, this mountain in 1861, and collected 
specimens of its marble for the London Exhibition. Some years 
after it was ve-discovered by Mr. Brown of P. E. I. Mr. Fletcher, in 
his report, gives Mr. Brown the credit of the original discovery.. 
On all sides of the Bras d’Or to Baddeck and onward to Whycoco- 
magh, all was familiar. We thought of the Mastodon tooth of 
Baddeck, and also of the noble spire of Gyracanthus magnificus, 
as well as the Femur of the Mastodon of Middle River. 
At Whycocomagh, our next station,*we were reminded of the 
Archzean Crystalline limestone which we examined in 1861, and 
represented by a specimen in our collection of marbles at the 
