52 THE HAMILTON ASSOCIATION. 
On pointing out this abandoned Barton quarry to C. D. Walcott, 
now the Director-General of the United States Geological Survey, 
and showing him the place where I found the Pleurotomarta, etc., 
in the absence of pick and bar he set to work with the sharp end of 
his hammer and managed to turn up a Z7vochoceras , the annulations 
were indistinct as far as I remember, and it was rather poorly pre- 
served. It may be necessary to remark the term ‘‘ Concealed Meas- 
ures,” so often met in the sub-division of the field geologist, is merely 
applicable to such layers as are hidden from view in quarry or river- 
bed. Weneed not be surprised at the term being often misunderstood 
by fossil collectors, occasionally when one points out to him that in 
certain indicated layers he will probably discover the shell he re- 
quires, and the result is different from expectation. It must not be 
forgotten that organic remains are not found in every portion of a bed. 
On one occasion a visitor expressed admiration for some Niagara 
Graptolites in one of the Museum cases, and the writer gave her in- 
formation regarding the locality and places in the chert where such 
things may be found. I never suspected she had any intention at 
the time of entering on a fossil-hunt at the Corporation or other 
quarries, or of course I would have volunteered to accompany her. 
Investing in a hammer and a hand-basket, which she expected to fill 
with specimens (a quarryman said the latter was big enough to hold 
all the dinner pails over there), with a facetious remark from a 
countryman of mine of “ More power to yer elbow, Miss,” he placed 
and fixed for her rather a tough layer from the base of the chert 
which she had selected for operations. If one may judge from the 
heap of broken chert and limestone, she must have displayed con- 
siderable muscular prowess, and the result of her exertion in scientific 
research proved rather unsatisfactory. ‘The writer was informed as 
she retired from the quarry with the empty basket she expressed her 
conviction that Annanias ought to be the patron saint of the men 
who compose a certain Section of the Hamilton Scientific Association. 
