THE HAMILTON ASSOCIATION. 81 
It is evident from the foregoing that the paleontologist en- 
tertained misgivings regarding the position he assigned to some 
small fragments which he supposed to be broken portions of 
‘‘Lichenalea Concentrica.’’ The specimens recently obtained 
in the Niagara chert beds here, no doubt, may throw additional 
light on this interesting genera. It is not an easy matter to detect 
the fossil (especially in situ), since colorless, like the white weath- 
ered chert itself. Probably five or more species (new to science) 
are represented in the neighborhood of Hamilton. The writer 
may be mistaken in thinking the parasite Lichenalea of the globu- 
lar sponge represents merely a single species. There are two 
other families of Bryozoons discovered in New York state—Nia- 
gara ‘‘Ceramopora’’ (Berenica) and ‘‘Paleschara’’—which have 
not been found yet either here or in the Grimsby shales. The 
latter hold scarred Bryozoons, which I have never seen figured. 
This class of organisms has been rather neglected here. Many of 
its minute forms are not caleulated(to attract attention. 
When the epitheca of Lichenalea has been removed by 
weathering (or in some unknown manner) the broad surface of 
the fan-like expansion is densely covered by minute ring-like 
markings, representing the openings of the cellules. This feature 
of the Bryozoons seems rare in the Niagara chert. 
The Clinton (May Hill) series: One visit alone was paid to 
the only portion of these rocks open to the members of our section 
now, viz., the small reservoir near the Jolley cut. The few slabs 
found there (although fairly preserved) contained merely the 
common, well-known Clinton Brachiopods and fragmentary plant 
remains. If we may rely on what is stated in a daily paper, that 
a railroad company intends to lay a track shortly to Ancaster, 
this would afford us a capital opportunity of gaining some ad- 
ditional knowledge regarding the Clinton and other rocks to the 
west of the city. Let us hope the directors of the new company 
will not feel inclined to follow the churlish and currish example 
of the Grand Trunk of Canada, which prohibits scientific investi- 
gation, not only on the track, but inside its fences. 
In one of the city quarries at the head of the Jolley cut, one 
may now notice in Niagara shale a good display of a band of 
