192 NOVA SCOTIAN GEOLOGY — HONEYMAN. 



33. Lycoperdon gemmatum, Fr. In fields and pastures.. 

 Common. Aug., Sept. 



Art. IX. — Nova Scotian Geology. — Notes on a New Geo- 

 logical Progress Map of Pictou County. By the 

 Rev. D. Honeyman, D. C. L., F. S. A., Ron. Member of 

 the Geol. Assoc, London, &c; Curator of the Provincial 

 Museum, and Professor of Geology in Dalhousie College 

 and University. 



(Bead May, 10, 1880) 



Introduction. 



The map exhibited is the first of a series which I have been 

 engaged for some time constructing. 



They are all on a scale one inch to the mile. Church's county 

 maps are generally used for topography. Occasionally the Ad- 

 miralty charts are used in the delineation of harbours and 

 portions of coasts of geological importance. From these and 

 railway section books elevation measurements are largely ob- 

 tained. 



The various papers that I have submitted to the Institute and 

 these maps may be regarded as mutually illustrative. 



Additional notes, however, seem to be required, in the case of 

 some maps, for the following among other reasons : 



1st. Railways have been, or are being, constructed which are of 

 more or less geological importance. These, in their nature, could 

 not be referred to in papers already communicated. 



2nd. New facts may have come to light. 



3rd. Certain old facts may have to be brought into connec- 

 tion with these new facts for specific purposes. 



The following notes on the progress map of Pictou county 

 seem to be required on considerations as above. 



Great Coal Field. 



A prominent feature of our map is an irregular polygon colored 

 black. This is the Pictou coal field as defined by Sir W. E, 

 Logan and E. Hartley. I have simply transferred it from the map 



