360 T. S. Hunt on the Geology of Southwestern Ontario, 
overlying quaternary gravels and in the fissures and cayi® 
the Hamilton shales, but in some cases the borings are 
entirely through these strata, into the Corniferous 1M) 
before getting oil. Among other instances cited in af ge: 
* Canadian Naturalist, June, 1861, and this Journal, March, pew of 
t Itis proposed to give, ina subsequent communication, the o 
amination of this remarkable limestor co 
