37 
Yorkshire and Lancashire Coalfields, and by remarks on the 
disturbances in the Yalley of the Don, which have contributed 
much to the solution of the difficulties that surrounded that 
subject. A comprehensive sketch of Fossil Ichthyology and of 
the Fossil Fishes of Yorkshire was presented by Mr. T. P. Teale. 
The Committee appointed to recommend a line of section has 
produced two reports, and the extensive section of the minerals 
on the Wentworth House Estate, and a part of the same section 
in the neighbourhood of Darton, have been described by Mr. 
Biram and Mr. Morton. 
In the Polytechnic department, the value of the application 
of Chemistry to Geology was illustrated by Mr. West on the 
Proportion of Sulphur in Coals, and by Mr. Leah's paper on the 
Influence of Atmospheric Moisture on the Manufacture of Iron. 
In this department, too, Mr. Hartop has contrilmted Observations 
on the Form of Boilers, and Mr. Morton's Remarks on Mr. 
Fletcher s Safety Lamp, and on Mr. Sykes "Ward's application 
of the Drummond Light forcibly exhibited the tvvo great defects 
of that most valuable invention of Davy. The methods of 
recording and delineating geological and mining operations and 
information were fully explained by Mr. Sop with, in his description 
of the Principles of Isometrical Projection, and by the exhibition 
of his admirable Model of the Forest of Dean. 
It is much to be regretted that the number of those who 
contribute papers is so small. There must be in the ranks of 
the Society many who in the course of tlieu' daily experience 
are constantly meeting with important information, but who, it 
is believed, are deterred from coming forward by the supposition 
that only a long and elaborate paper is worthy the Society's 
attention ; such an opinion cannot be too soon abandoned, nor 
can they be too often reminded that the communication of any 
fact connected with the objects of the Society, however simply 
and briefly related, is of great importance. 
