secretary's report. 
139 
1875, 1876, 1877, 1878, 1879, 1880, 1881. 
During the past year the committee appointed by the Society 
to superintend the exploration of the Raygill Fissure in Lothers- 
dale have found it advantageous to suspend operations for sometime 
longer. Mr Spencer, the proprietor of the quarries has very kindly 
removed a large mass of material which obstructed the entrance to 
the horizontal portion of the fissure which has now been reached. 
By this means the operations of your committee will be rendered 
very much easier and less expensive. • It is hoped that early in 
next year operations will be recommenced. 
The Society is again indebted to Mr. W. H, Dalton of H.M. 
Geological Survey for his assistance in the preparation of the 
Bibliographical lists and expresses the thanks due for his kindness. 
