CHAPTER I. 
THE MINERALOGY OF NEW HAMPSHIRE. 
s asai are in New Hampshire some minerals of economic impor- 
tance. There have here been found many minerals of great scien- 
tific interest, which have been studied both at home and abroad, and 
which have given to our state a world-wide reputation among men of 
science. In this chapter it is proposed to enumerate the mineral species 
that have been found in this state; to describe the peculiarities that they 
possess; and to give the results of whatever labor that has been done 
upon them. 
But little systematic work has heretofore been done upon our minerals, 
The final report of Dr. C. T. Jackson, the former state geologist, which 
was rendered to the legislature in 1844, contains what was known up to 
that time in regard to them. The labors of this geologist were largely 
devoted to the study of our mineral resources; and he was the first to 
call attention to many minerals and mineral localities which were for- 
merly unknown. Though the sanguine anticipations of that gentleman 
in reference to the mining wealth of New Hampshire have scarcely been 
realized, his labors are of no less value to us. 
The location of Dartmouth college in this state has done much for the 
development of our knowledge of our minerals. There have been in the 
past, as at present, gentlemen connected with this institution who have 
searched with great care through our rocks for minerals of new intérest. 
The labors of the present survey have added many names to our list of 
