150 PROCEEDINGS MANCHESTER INSTITUTE. 



working caused it to be abandoned. I found here very fine speci- 

 mens of common garnets. The locality is accessible from the 

 highway and will repay a visit of the student. At the Frances- 

 town soapstone quarries I found besides the steatite some good 

 specimens of serpentine, also of coarse asbestos, and hornblende 

 and seams containing calcite. 



At Hooksett, at the Pinnacle, lead ore carrying silver, also small 

 deposits, or grains, of gold have been obtained. I have seen 

 small beads of them in possession of the late B. P. Cilley here ; 

 also good specimens of quartz crystals are to be found. There 

 is a vein of white quartz running out towards Allenstown. Some 

 specimens are very interesting, being traversed with numerous 

 veins of red. You cannot fail to observe this rock, for the old 

 walls along the highways are full of it ; many of the blocks are 

 covered with minute crystals. At the Devil's Den in Auburn 

 excellent specimens of folded mica schist occur, also good sam- 

 ples of gneiss. 



Portsmouth and York, so accessible and so extensively fre- 

 quented by Manchester people for their summer outings, I have 

 found to be a geologist's or mineralogist's paradise, and if I refer 

 briefly to the locality, I trust I may be able to furnish you with 

 an additional pleasure in the contemplatian of the rock masses of 

 that section. Here are to be found immense beds of shale that 

 have been upturned and fractured in the grandest scale. Into 

 the seams have been ejected masses of lava' or trap of various 

 colors and character, here a bed of porphyritic variety, and there 

 a dike of the amygdaloid, and numerous other varieties, all of a 

 most interesting character. Flanking these trap dikes are walls 

 of metamorphic shales and slates, the striped stone that York 

 Beach pebbles are formed from, also here are to be found fine 

 specimens of breccia and numerous and extensive beds of syenite 

 and numerous other interesting varieties. The student will be 

 richly rewarded by a visit here, and with strong limbs, sharp eyes 

 and his tool bag, may reap a rich harvest. In the vicinity of 

 Portsmouth I find fine specimens of shale, and in the seams of 

 the stone occur numerous veins of quartz and calcite or carbon- 

 ate of lime. The series belong to one of the oldest orders, and 

 one thought to belong to the Cambrian period. 



