Paper on the late Discovery in the Kingswood Coal-field. Read by 
Hanpet Cossuam before the Cotteswold Naturalists’ Field 
Club, August 12th, 1884. 
The Bristol Coal-field, and especially the northern portions 
of that field, is a very complicated piece of Geology—very 
difficult to read accurately—and has had repeatedly to be 
‘re-written, in order to conform it with ascertained facts, and 
make it consistent with new discoveries. My business relations 
have brought me into close, and constant, contact with the 
Geological problems of this portion of the county; and I 
‘onfess that the endeavours to unravel the Geological intricacies 
the country lying between Bristol on the south, and 
It has been my singular good fortune to make one or 
two discoveries that have considerably extended the boun- 
daries of the Coal-field, and of laic under tribute large 
quantities of valuable mineral, where such deposits were not 
supposed to exist. 
_ Iclaim no particular credit for this; it has been the result 
the fortunate, and favorable, position in which I have been 
placed for making observations, and conducting under-ground 
investigations. 
Some twenty years ago I challenged the accuracy of the 
xeological Maps of this district, which up to that time showed 
large development of Millstone Grit (or Farewell Rock) that 
as supposed to have been protruded across the. Coal-field 
etween Bristo] and Wick, and by proving that this supposed 
fillstone Grit was only one of the Silicious Sand Stones of 
he Coal Measures lying between, and dipping conformably with, 
ttain well known beds of Coal that lie below the Pennant 
