62 THE HAMILTON ASSOCIATION. 
OPENING ADDRESS, GEOLOGICAL SHCTION. 
BY COL. Cy Ci GRANT 
My first visit during the past collecting season, outside the 
city quarries, was paid to a field on the brow of the escarp- 
ment which for many years has displayed Niagara chert 
sponges and their sections ; the snow had disappeared in the 
city and I considered a sufficient time had elapsed for the field 
to be dry enough for examination. In this, however, I was 
disappointed, so resolved on the following day to ascertain if 
the frost had brought down any fresh material from Burlington 
Heights at the Desjardins Canal. Very little debris had 
fallen since visited during the autumn previous, and only a 
few of the water-worn pebbles and shingle presented any indi- 
cations of being fossiliferous. I extracted from a mass of the 
conglomerate, a hard purple limestone which I found from 
experience on the lake shore at Winona was likely to hold 
specimen of the Ostracoid named by T.R. Jones, F.G.S., Leper- 
dita Canadensis. On splitting it, the well known organisms 
presented themselves numerous as ever, together with a 
Modiolopsis and witg-shell, common to the Trenton and 
Hudson River series, probably. In the absence of more likely 
material I commenced breaking up some rather unpromising 
limestone and Medina freestone pebbles and was agreeably 
surprised to find in the one, a large Murchisonia, while the 
white sandstone displayed a Lzwgzla allied to, if not identical 
with ZL. Clintonensis which as far as I can learn has not been 
discovered in this series hitherto. More recently another visit 
was paid to this locality in the belief that the heavy rain falls 
lately might have affected and released some more of the Con- 
glomerate overhead, this conjecture was found to be correct on 
examination and although we cannot claim the discovery of 
any specimens unknown to scientific research, a considerable 
