IN NOVA SCOTIA—ELLS. 445 
accompanied by a map of the area, was prepared and published 
in the annual volume of the Geological Survey for 1896, in which 
the leading geological formations Were outlined and many import- 
ant facts relating to the structure and mineral resources were 
given. The detailed mapping of portions of this district is still 
in progress, in order that the map-sheets of that portion of the 
province may conform with those already published of the 
northern and eastern divisions. 
Valuable papers have also appeared from time to time from 
the pen of Mr. H. S. Poole, for many years connected with 
important mining operations in the Pictou coal-fields, which 
afforded him excellent opportunities for the study of the rocks 
of the Carboniferous system, and also from Dr. E. Gilpin, of the 
Department of Mines, Halifax, who has ably dealt with certain 
points of structure presented by the rocks of that district, and 
also with many questions relating to the occurrence of economic 
minerals at many points throughout the province. 
In connection with Acadia College, Professor Haycock has 
recently published two valuable papers, dealing largely with the 
question of local geology, which are of much interest. In the 
area about Wolfville ana along the Gaspereau Valley, as well as 
in connection with the rocks of the North Mountain range, 
there is a most interesting field for investigation which has been 
as yet scarcely touched. It is t» be hoped that this area will 
now receive that attention from local geologists which it well 
deserves. 
In a paper of this kind it is, of course, very evident that 
many points of great interest must be omitted. The merest 
outlines of the subject have of necessity been stated, and there 
are other names which have been associated to a greater or less 
extent with the work of investigation, to which but slight 
reference can be made. Among those who have thus contributed 
papers relating to the geological structure and mineral resources 
of the province at a comparatively early date, may be mentioned 
by Mr. J. Campbell of Halifax, whose reports on the gold-fields, 
in 1863 are of much interest, and Dr. H. Y. Hind of Windsor, 
