345 



These peculiar remiiins of organisms — worm-like burrows — refer- 

 able to Haldeman's genus ScolUhus occur in great abundance and differ 

 in i-espect but little from Billing's S. Canadensis. On the whole the 

 barrows might bo described as much less flexuous, less wide, rather 

 crowded and straightened than those of »S'. Canadensis, but scarcely 

 can it be recognised as a new species, so great is the range of variation 

 in the specimens examined. 



Chart! and's Island in Lake Deschenes — the property of Mr. C. IM. 

 Church — was noticed by Mr. Sowter to consist of limestones which 

 for the most part exhibit the peculiar concentric patches resembling 

 Slromatocerium of Hall, and is therefore of Chaz}' ago. 



Black Eiver Formatiox. This formation which immediately 

 and conformably overlies the Chazy formation has been further noticed 

 by Mr. Sowter to be developed on the property of Mr. Neil about one 

 mile north of the town of Aylmer, at which place the typical coral 

 Tetradiuin fibvatum, Safford, was collected by him during the past 

 season, 'and indicates with great exactness that the rocks from which 

 it came belong to this formation. A sub excursion of the club was 

 held at the Petite Chaudiere, on the Ottawa River, a favourite resort 

 of the late Mr. E, Billings, and amongst the characteristic fossils of that 

 formation which were collected and noted, on that day Mr. Whiteaves 

 obtained a Cyrtoceras, probably the C. reyulare of Billings. 



Trenton Formation. — In this formation some interesting and 

 new facts have to be placed on record. At the .sub-excursion held 

 Saturday, October 24th, in the vicinity of McKay's Bay, where the 

 members present had an oportunity of examining a geological fault and 

 upturned strata, no less than twenty-six species of fossils were col- 

 lected. Pi'of. Macoun obtained a fine rolled up example of Calymene 

 senaria, Coni-ad. Mr. Ami collected in addition to other interesting 

 forms two glabellte of Bemopleiirides Canadensis, Billings. This species 

 described by Mr. Billings in his " Pakeozoic Fossils," vol. I, p. 182, 

 from the Chazy formation in the front concession of the lownshiji of 

 Clarence, on the Ottawa River, had never before been found in strata 

 so high up in the series. This together \v\i\\.Reinopleu7-ides striahdus, 

 Walcott, were the only two s])ecie3 of that genus known so high up 

 and both of the Trenton formation. Asso,-i:ited witli this addition to 



