C. G. Rockwood— Recent American Earthquakes, 25 
——. At7.30 P.M, of the same day a heavy shock, lasting 
fifteen seconds, was felt at Campo, Cal.—(U. 8. Sign. Serv.) 
Aug. 23. Shocks of an alarming nature were felt at Cobija, 
Bolivia, at 1.40 P. M., fee at Tquique at 5 Pp. M., and a few days 
earlier at Copiapo, Chili. 
Sept. 1. A slight shock at 11 a. M. at Latonsville, Sandy 
Springs, Brookville, Laurel and other points in Prince George's 
Sept. 7. A shock at 10 p.m. at Yuma, Arizona,—(U. S. Sign. 
Serv.) 
Sept. 10. A shock at 9.59 a. m., felt in the valley of the 
Delaware River from Trenton to Philadelphia. Tt affected an 
extent of country, about thirty-five miles along the river cM 
twenty miles wide, and having its center at Burlington, N. J. 
lasted thirty or forty seconds, had an apparent motion consid 
the southwest, and was accompanied by a rumbling noise. 
Sept. 18. Panama advices of this date say, Shocks of earth- 
quake were continuously felt in some of the southern ports of 
Peru. 
Sept. A shock at Campo, Cal., at 2.30 p. m., lasting five 
seconds, with low rumbling.—(U. 8. Si ign. Serv.) 
Oct. 9. A severe shock at 2.20 A. Mm. at Lima and Callao, 
Peru; felt also in Pisco, Ica and Chincha, where two shocks 
were reported. The vibration was from north to south. 
Oct. 12. Quite severe shocks were felt in Oregon, occurring 
in Portland at 1.58 P. M., two shocks being noticed; at Ma rsh- 
hy Clackamas Co., at 145 P. M.; and at Cascades at 1.52 
M. (Another shock was felt at Cascades at 9 A. mM.) The vibra- 
ei were in each case from north to south and were sufficiently 
violent to overthrow chimne 
tien, A. M. of the same day a slight earthquake 
was felt on the Isthmus of Panama. 
Oct. 26. Between 5 and 6 p. M. the schooner Leo felt a 
severe earthquake shock, continuing about ten seconds, in lat. 
43° 13’ N., long 128° W., the vessel being 300 or 400 miles 
from the coast of Oregon. 
Nov. 4. About 2 A. M. a rather severe earthquake was felt 
renaterws a And part of Canada, New York and New Eng- 
along the Connecticut River ; re Burlingios and Benni nington, 
vi. ‘Plattsbur 2, Whitehall and Saratoga, N. Y., and the valley 
