252 



Fotsdam Formation. — At Moutebello, Mi-. Louis J. Papineau has 

 been carrying on extensive operations in this formation and has dis- 

 covered numerous tracks of marine animals upon the sandstones which 

 once formed an ancient seashore. Somo beautiful slabs have been ex- 

 tracted . 



CJuizy Formation. — As has already been noticed in former tran- 

 sactions, the measures of this formation are clearly divisible into these 

 series in the following ascending order : {a) Sandstones, with flags and 

 shales; (h)' Shahs ; (c) Limestones. The sandstones are very poor in fos- 

 sils. Aylmertown and Pointe des Chenes, however, have yielded a few 

 species, whilst a specimen of Lingida, as yet undetermined, but pro- 

 bably new, was found in the shaly division at Hemlock Lake, New 

 Edinburgh ; at Hog's Back, Nepean. souie very fossiliferous beds 

 occur, one especially noteworthy containing abundance of Z/«^?</a Belli, 

 ( BiHings), a Lamellibi-anchiate shell also undetermined and Cyrtodonta 

 hrevinscula, (Billings. ) Numei-ous black phosphatic nodules, probably 

 coprolites, are frequently associated with these. 



On the occasion of the Club's visit to Moore's Landing, opposite 

 Quyon, aljout 40 miles west of Ottawa, the geological branch had a 

 splendid opportunity afforded them of examining a fine section of the 

 Chazy formation. The measures at this place are exposed from the 

 river margin to the top of the hill (with a few places of concealment) a 

 thickness of 135 feet. This exposure can be traced down the Ottawa 

 in an undoubted continuous series as far to the east as Skead's Mills, 

 near Ottawa, along the Ontario shore, outcrops of which aie almost 

 everywhere to be seen, but especially about Berry's brewery and 

 along the lake shore and at Brittania. This tract of country waa 

 geologically coloured as Calciferous in the 1866 map published by Sir 

 \Vm. Logan, but from conclusive palajontological evidence obtained at 

 this excursion it can be positively asserted that these measui-es are of 

 the Chazy formation. Deposited horizontally and even now quite un- 

 disturbed, the beds at Moore's Landing hold an abundance of oi'ganic 

 i-emains in the uppermost or limestone portion of tiie section. The 

 characteristic band of impure limestone teeming with remains of En- 

 tomostraca may also be seen here in its normal position — as at Aylmer, 

 Hog's Back, L'Oiignal, etc., from wl.icli places it has been recorded. 



