eae 
“Tn 1829, as above stated, it was $128,000. 
404 Miscellanies. 
_ Of the amount of gold bullion, deposited at the Mint, within the 
last year, about $131,000 were received from Mexico, South Amer- 
ica, and the West Indies ; $22,000 from Africa; about $12,000 
from sources not ascertained; and the residue, about $134,000, 
from North Carolina, and the adjacent States of South Carolina and 
Virginia. The proportion from North Carolina may be stated at 
$128,000 ; that from South Carolina at $3,500, and that from Vir- 
_ ginia at $2,500. | a 
The first notice of gold from North Carolina, on the records of 
the Mint, occurs in the year 1814, within which it was received to 
the amount of $11,000. It continued to be received during the 
succeeding years, until 1824, inclusive, in varying amounts, all infe- 
rior however to that of the year first mentioned, and on an average 
not exceeding $2,500 yearly. In 1824, the amount received was 
- $5,000; in 1825, it had increased to $17,000 ; in 1826 it was 
_ $20,000 ; in 1827 about $21,000; and in 1828, nearly $46,000. 
. s Ten ble increase in the amount of gold received from 
North Carolina, during the years following 1824, has been consider- 
ed of sufficient interest to be noted in the annual reports from the 
mint, since that period. The circumstance will attract additional at- 
tention, from the fact now ascertained, ihat the gold region of the 
United States extends far beyond the locality to which it has hereto- 
fore appeared to be limited. Gold bullion had not been received 
rom Virginia or South Carolina, until within the last year 5 or, if at 
all received, it has been in quantities too inconsiderable to nave been 
specially noticed. ‘The gold from all these localities is found, in ts 
native state, to be, on an average, nearly of the same fineness as the 
standard of our gold coin. - 
Some additional observations on the gold mines of the Carolinas, 
which arrived too late for this number, will appear in the next. 
3. Electrical properties of Caoutchouc.—Prof. Walter R. John- 
son, in a paper read to the Academy of Natural Sciences, April 20; 
1830, has developed the electrical properties of caoutchouc, and 
States some novel results and applications. 
. Although Dr. J. K. Mitchell had before placed it among ROR” 
conductors, Mr. Johnson has shewn that it is one of the most perfect 
non-conductors. In the common process of removing pencil marks 
om paper, much of the latter, with the crayon and some of the 
