Z6 



ECONOMIC GEOLOGY. 



is about three fourths of a mile to the inch, and it is sufficiently large to 

 show all important features. All the material at our command has been 

 made use of, supplemented by a special survey made by Major John N. 

 McCHntock for us of the territory west of the Ammonoosuc river. The 

 geological coloring is much the same as that on the general map, save 

 that the representations of the auriferous conglomerate and copper belts 

 have been added. When Volume II was written, it was not known that 

 this band occurred east of Lisbon village. The modified drift is not dis- 

 tinguished. 



The other map is a special survey of the Gardner Mountain copper 

 district, prepared by J. N. McCHntock. An error in the boundary line 

 between Monroe and Lyman is my own. Contours for every ten feet 

 are represented, and the outer edge of the wooded areas. It is designed 

 to show the mineral proi^rietorship of the several tracts of land, both 

 those valuable for ores contained, and the intervening farms. The col- 

 ors show the shapes of the several tracts better than the hnes alone. 

 The following is a list of them, beginning at the north end, with their 

 dimensions, and the nature of the minerals present: 



Name. 



Gardner Mountain Company 



Kinney farm 



Carter farm— scattered lots 



Carter mine 



Gregory Company 



Wendall lot 



Penhallow lot 



Paddock Company 



Titus 



Richardson 



Abram Smith 



Paddock Silver Lead 



Haviland Company 



Dow lot 



Stevens Company 



The map delineates the original lots of Lyman township. Farther to 

 the south, in Bath, arc three or four additional openings for copper, the 



