A FEW HINTS ON LOCAL FOSSIL COLLECTING 103 
served at that point they appeared more numerous and not 
so scattered, and from the bank where the material was 
taken I succeeded in extracting a hard shale slab containing 
two crinoids, KEucalyptocrinus decorus and K. crassus, 
one or two of the arms appeared to be interlocked, these 
were lost or stolen with an Indian scalping knife and other 
things on removal to the house we now occupy. 
RISING GROUND RIDGE, SOUTH OF CORPORATION 
DRAIN. 
Here we have the base of the Barton Niagara beds 
resting on the Chert; for many years the fields of ‘‘ the 
ridge ’’ have been undisturbed grass-lands between the two 
roads crossing the ridge. I wish to call the attention of 
fossil collectors particularly to this place. Under its 
present unfavorable conditions you cannot expect to be 
even moderately successful in fossil hunting there, but for- 
merly when the fields were plowed up they proved exceed- 
ingly rich in Barton and Niagara organic remains. When 
you find specimens lying exposed on the surface of a field, 
it may be erroneous to suppose they originally inhabited 
the spot where they were lying. The large Stromatopora 
and Corals found there I think came from a higher horizon 
and may have been left by a retreating glacier. The 
sponges (Astyolospengiz) were similar to the ones beyond 
the rock-cutting at ‘‘ Little Horse-shoe Falls,’’ where the 
base of the Barton beds was first discovered, and like the 
specimens there were in poor preservation. 
From some upper beds in a ditch close to a fence I ex- 
tracted quite a number of Lamellibranchs (Avicule) to- 
gether with Brown’s Posidonia Posidonomya, but all of 
last mentioned came under two species already named by 
Dis jas. Hall: 
The tough shale in the drain and lying loose on the sur- 
face when under the hammer revealed some fine Lingulzs 
but no new species, with however one exception, perhaps, 
