HISTORY OF GEOLOGICAL SURVEY. 



SI 



Temple and Mason are 6i miles distant from each other. The Mason range does not 

 curve to the west, as erroneously shown upon the map. 



There are also ranges of quartzite in the mica schist group. The most extensive is 

 in Raymond and Nottingham. Other outcrops are in Londonderry, Stratford, and 

 Pittsfield. Those in Strafford were formerly regarded as the extension of the Temple 

 and Mason ranges. 



Museum. 



Work has steadily progressed, during the continuance of the survey 

 upon the museum. Culver hall contains the specimens designed for the 

 New Hampshire College of Agriculture and the Mechanic Arts ; but the 

 Concord collection still remains packed in boxes. Briefly, the special 

 features of the museum are the following : A room about forty feet square 

 is set apart for the illustration of the geology, mineralogy, paleontology, 

 botany, and zoology of New Hampshire and Vermont. It is designed that 

 every department shall be represented complete and entire. Only the col- 

 lections of the survey have been presented by the state ; but earnest efforts 

 are put forth to secure the remainder by aid from friends of Dartmouth col- 

 lege. This institution being nearly the geographical centre of two states, 

 it seems an appropriate place for this gathering of representations of 

 their natural products and resources. The room now contains, first, and 

 the most prominent feature, fourteen shelves, holding specimens collected 

 along fourteen east and west lines across New Hampshire. Several of 

 the section lines have been carried across to Lake Champlain. Behind 

 each shelf is a colored profile of the route taken, drawn to an exact 

 scale for heights and distances, each formation being distinguished from 

 every other, the names of the groups and localities printed in large 

 letters, numbers placed on the section to show the exact locality of every 

 specimen, and the rocks appear in the immediate proximity of the figures 

 on the wall. Lithological specimens, obtained between the section lines, 

 are placed on the shelf in their proper relations, but not so as to be 

 confounded with the others. There is also a series of large maps of the 

 northern townships (and eventually there will be of all the rest), showing 

 the topographical position of every lithological specimen in the collection. 

 If possible, these will be reproduced for the report. Second, the room 

 contains several sets of specimens, properly catalogued, to illustrate more 



