G. E. Belknap— Under-water Oceanic Temperature. 27 
movement H. to W., Omaha 11.40 a. m., three shocks lasting 
ten gos oe apes and Atchison, Ks., 12 M., and Yankton, 
De Py Fy 
These eas are plainly oe but at this distance no 
data are available for correcting 
Nov. 16. A slight shock issuly 2.20 a. M. at Knoxville, 
Denk. 
Noy. 18. A shock about 5 A. M. in the Bermuda Islands — 
(N halle Daily Advertiser). 
Princeton, N. J., Nov. 30, 1877. 
ART. He aeons on under-water So 1 siiaais ; 
Captain G. E. Beuxnap, U.S. N. 
[When, many years ago, it was announced by eee 
Maury and others, that a cold enban might exist in the o 
between two adj cent warmer ones, or vice versa and that there 
might be a succession of such conditions between the surface a 
n e 
cases of a similar character. A similar observation was made b 
Captain Belknap, of the U. 8. seen while in command of the 
. steamer Tuscarora, during her famed cruise in the Pacific ; and 
by the courtesy of Commodore Ammen, chief of the Bureau of Nav- 
igation, we are permitted to present an abstract of a report made 
- that officer on the 2d of September, 1874.—Eps. ] 
TubDY of the surface and under-surface temperatures, a 
sb Pacific Ocean, has yielded some interesting results. Grea 
care was taken to make the observations as accurate ery 
any marked change in temperature, the observations were 
always — In ing the under-surface temperatur 
along the urile Islands, the indications of the Miller-Casella 
thermometers were sometimes so startling and perplexing, the 
indicated temperatures being so low, that ‘the observations — 
often duplicated to verify their accuracy; if the second o! 
vation confirmed the first, the results were accepted as aia: : 
otherwise they were 
roceeding in this way, a 1 cold stratum between two warm 
strata, was found to exist quite near the surface, between the 
