C. G. Rockwood, oe American Earthquakes. 297 
Jan, 30, “ oe shock senisil 10 and 11 A. Mm. at Colima, Mexico.—JU. S. 
Weather R 
Feb. re e shock at Visalia, Cal., at 0"°8" 4. m., lasting five 
seconds, with rumbling noise, ‘and seven seconds later a second 
heavier shock lasting nine seconds, The motion “ appeared to 
tig e from the 8.E. or E.,” and was felt in the surrounding coun- 
Feb. 12, 18, 26. At San . osé, Costa Rica, feeble shocks on 12th 
at 10.46 Pp. M.; on 18th at 3. 10 A, M. 5 “ge 26th at 6.00, 6.10, and 
6.30 4. M., with a stronger one at 4.40 P. 
— 19, A shock at San Francisco, Cal., a few iia after 5a. M—WN. Y. 
March 18, A avong shock at Alajuela, Costa Rica, at 0.15 4 
and a San José at 0.17 a. m., oscillations E. to W., lasting fe 
secon 
March 2 
River bas Philadelphia. It ex xtended from Chester, Pa., 
beyond Salem, N. J.,a distance of about 30 miles, being felt sc 
strongly on the east side of the river, where it was accompanied 
by a boine resembling thunder. 
April 3, 4. At San José, Costa Rica, at 11.25 a. M. on the 3d, a 
a a shock ; and at 11.44 a, m. of the 4th, pi strong shocks with 
an interval of five to seven seconds, At 2p. m. of the same day 
a shock was felt at Puntarenas. 
Apri 1 A shock mips aed, N. Y., at 11.15 a. m., from W. to 
E. isting ag ieee secon 
Ma ay 16 or 17, An cua ake in the morning at Vera Cruz, 
Mexico, e inlaid to Canteve and Orizaba, I have this from two 
souroes dist erring, Di in the day, although evidently referring to the 
m 
May 2 5.30 Pp. M., a rather heavy shock at St. Georges, 
Iie © felt also about the same hour in the islands of Porto 
Rico, St. Croix and Tortola, the nearest part of the Antilles. 
May 26. Slight shock at Princeton, Oal., at 8.40 p. m—U. S. Weather Review. 
May 29, 30. On the night between these days, at 6.30 Pp. m. and 
1,30 a. M., severe shocks occurred in Costa Rica grote some 
houses at San José, Alajuela and oe and felt more lightly at 
Aspinwall, Panama and other place 
, June 3. At 9.32 a.m, on Atka Toland, Alaska, eight sharp shocks 
im rapid succession, lasting about two seconds each, direction S.SE. 
to N.NW. 
June 11,12, A light shock at 10 P. . = at Montreal and east 
and southeast from there as far as Waterloo and Frelighsburg. 
At Montreal it is described as “loud rumbling, slight shock and 
