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Miscellaneous Intelligence. 297 
V. MISCELLANEOUS SCIENTIFIC INTELLIGENCE. 
1, Earthquake on the Iskand of Penang. (In a letter to the Editors, 
dated U. S. Naval Observatory, Washington, 24th August, 1861.)— 
Gentlemen :—Mr. Geo. E. Tyler who has just returned from the East 
Indies, communicates to me the following :— 
“ Saturday, Feb. 16, 1861.—At 74 Pp... there was a severe earthquake 
shock of sufficient force to throw down crockery from shelves, stop clocks, 
and to set articles to swinging. In walking, the ground seemed to undu- 
late sufficiently to make many persons feel nausea. ere appeared to 
ds. 
“ March 2d.—I have learned since the above, that the shock was felt 
at Malacea and Singapore at the same time at each place and with about 
the same degree of violence, though it was not recognized by many ves- 
sels in the harbors and on the passage here from Singapore. 
_ “About five minutes before the shock, there was an unusual commotion 
in the sea and I spoke of it to others at the time. There was no percep- 
tible air stirring, and the sky was clear. Thermometer 91° Fahr. No 
other earthquake has been known here during the last 17 years and then 
only a very slight one.” Very respectfully yours, 
J. M. Gituss, Supt. 
dard 
e 
i. Gold. —Mr. pes the se 
ssayer of the U.S. Mint at Philadelphia, has lately made severa’ inter- 
esting examinations tending to show ahs very wide distribution of gold. 
assing over the evidence respecting its presence in various galenas, in 
Metallic lead, copper, silver, antimony, &e., we cite the following :—per- 
ps the most curious result of all. 4 ; ‘ 
Underneath the paved city of Philadelphia there lies a deposit of clay, 
Whose area, by a probable estimate, would measure over three miles 
reet near Eleventh Street, we dug out 
AM. Jour. Sc1.—Szconp SERIES, VoL. XXXII, No. 95.—SEPT., 1861. 
38 
