Effects of Lightning. 239 



discovered a small loose specimen of mass copper. This stimu- 

 lated them in their researches, which resulted in the discovery of 

 ^ the vein in the belt of granular trap about twelve feet to the east, 



^ showing that it had been subjected to that amount of heave or 



dislocation. .* * * # From that time to the present day, hardly a 

 » month has elapsed without developing new masses; and their 



occurrence, so far from creating wonder, is regarded as a matter 



€ 



ot course. The largest single mass hitherto exposed weighed 

 about fifty tons. * # # # # 



From the reports of the trustees rendered in 1849 and 1S50 

 we gather the following information : 



The amount of capital stock paid in by the stockholders is 

 $110,000. The personal effects of the company on the first of 

 December, 1848, were $140;982, leaving a surplus of $111,105 



a sum a little more than equivalent to the entire capital stock, 

 fhis statement does not include the mine, with its fixtures and 

 improvements, such as the stamping-mill, furnace, &c. * * * * 



Products. Expenses. 



1846 - - $8,870,95 $32,203,44 



^ 1847 - . 70,977,32 61,737,85 



1848 - - 166,407,02 67,607,58 



1849 - - 244,237,54 1U6,968,77 



This embraces such expenses only as were incurred at the 

 ^^Hie; those of insurance, commissions, freights, <fcc., are exclu- 

 ded. The cost of transportation to Boston is $15 per ton; to 

 sburg, $7,50. The incidental expenses amount to about 20 



per 



The company have erected the necessary works at Pittsburg 

 for smelting and refining the copper, and they estimate that the 

 shipments for the year ending December, 1849, will amount to 

 660 tons of refined copper. 



The product of silver for the year 1849 was $2,365,30." 



Art. XXVI. — Effects of Lightning during a storm on the first 

 <fJu1y^ 1851, at Attleboro\ Mass.; by Mr. Henry Rice. 



OxNT the 1st of July a thunder storm commenced in the S.W-, 

 at about 6| A.M., the wind being at the time in the south. At 

 7J A.M. the wind had changed into the S.W. At a little before 

 8 o'clock the shower seemed to divide, one part going to the north 

 and the other to the south of this place. At 8 a.m. the wind had 

 changed into the east, the clouds ai the same time coming from 

 the south. At 8^ it commenced raining here, the shower which 

 }vas at the south having come up and the wind having changed 

 ^nto the south. One flash of lightning which seemed to go 

 directly downwards, was succeeded by the report in eight sec- 

 onds, and the report continued audible for thirty seconds, hence 



