7S8 [AsSEJMBLY 



A highly intelligent resident of North Elba* has communicated In 

 a valuable description of that town, prepared lor my use, a singm- 

 lar and apparenily well authenticated fact of the accidental dis- 

 covery of a vein of silver ore among the Adirondacs of that 

 region, and the loss of its trace. He adduces very strong evidence 

 of the fact, and that pure silver was fabricated from the ore. 



A quarry of black clouded marble of rare beauty and^softnees 

 occurs upon the garrison grounds at Crown Point. Although 

 more than a century ago the entrenchment of Fort St. Frederick, 

 penetrated a section of the quarry, it has excited no interest until 

 its importance has been revealed by the enterprise of the Messrs. 

 Hammond. Its texture is firm and consolidated, but so soft and 

 free from grit that it may be readily carved by a pocket knife, 

 Ifc opens in large slabs and blocks, receives a high and bril- 

 liant polish, and is adapted to the most delicate fabrics. Another 

 quarry of dark stone, situated upon the bank of the river in 

 Ticouderoga, is extensive, and will, I think, prove of great 

 value. Harder and less delicate than that at Crown Point, it is 

 darker, and appears susceptible of a very high polish. 



A quarry is situated upon the premises of J. N. Macomber, in 

 Chesterfield, of great apparent extent, and very unlike either of 

 the above in color and structure. It is a light brown, variegated 

 hy a white, with a shelly combination, and receives a brilliant 

 polish. The unusual coloring and appearance of this mar- 

 ble, will probably render it a valuable deposit. An analysis of 

 it will be presented in another department of this report. 



The geological form.ation along the shore of Lake Champlain, 

 presents an unique and remarkable' alternation of the primitive 

 with the higher structures. The former, in a general inclination, 

 recedes from the lake, but incidentally dislocates the formations 

 of the latter by projecting through them veins and ledges, in lat- 

 eral spurs. At Ticouderoga, a range of sandstone and limestone 

 rock supervenes. Proceeding northward, we meet at Crown 

 Point, a ledge of regular granite, and veins of gneiss, succeeded 

 hj limestone containing fossil remains, and mingled with the 



• Timothy Ka*, Ksq. 



