THE HAMILTON ASSOCIATION. 12] 
patches in question that I lately secured an exceedingly fine 
and nearly perfect Inocaulis, and another in good preservation. 
The specimens of this family figured or described by Hall and 
Spencer are mere fragments chiefly. This group of the 
Hydrozoa seems to have reached its culmination in our local 
macadamizing beds. Many species probably remain unde- 
scribed yet. When. the late Dr. Jas. Hall was selected to in- 
vestigate and describe the Lower Silurian Graptolites in pos- 
session of the Canadian Geological Survey, he remarked: “In 
most of the species described the lower ‘extremity is imperfect 
and-its termination unknown.” Since then considerable light 
has been thrown on the subject by the upper Silurian quarries 
here, but we have much to learn yet regarding the parts refer-. 
ved to in the monograph. We trust the Geological Section of 
the Hamilton Scientific Association may be the means of clear- 
ing up some doubtful points regarding these Zoophytes yet. 
We contributed a little already in this direction. The Hamilton 
Scientific Association has been congratulated even by far Aus- 
tralians for its contributions to our knowledge of these ancient 
Sertularians, and the very accurate illustrations of our Trea- 
surer, Mr. Scriven, did much to attract attention to some of the 
most perfectly preserved ones that have even been found in the 
upper Silurian rocks. 
The writer has not seen any of the Graptolites discovered 
by Barrande in Kurope figured. He thinks the professor is 
not far astray when he claims this family reached its culmina- 
tion when the Wenlock beds were deposited. Many speci- 
mens must have been secured to enable him to arrive at this 
conclusion. Independently I expressed a similar opinion in 
Ontario, and I feel inclined to think further that no quarries in 
the Old Country can. compare with ours here in producing e 
class of fossil as numerous. The early Paleeozoics of the Old 
World have been so tilted, crushed and altered that it appears 
difficult to understand how it can possibly compete in organic 
remains with the Limestones, shales, etc., that hold undis- 
turbed the plane of the original sedimentary deposit. 
During my stay at Winona I paid two visits to Grimsby. 
