468 C. G. Rockwood, Jr.—Japanese Seismology. 
Nothing has here been said with regard to the “ kettle-holes,” 
that is, isolated kettle-shaped and often pond-containing de- 
pressions, which, 1 n Mr. Upham’s view, were connected in origin 
with the “ kames ;” and for the reason that they occur also over 
ordinary terrace- plains. Further, Mr. Upham’s hypothesis as 
to the origin of “ kames” there is obviously no occasion here to 
Some points in the explanations above advanced need, in 
view of the difference of opinions among writers, further consid- 
eration, and will be made the subject of another communication. 
Art. LX. a, Seismology ;* by Professor C. G. Rock- 
D, Jr., Princeton, N. J. 
THE change in the foreign policy of the Japanese, by which 
that country was opened to the influences of western civilization, 
gave an impulse to several branches of scientific investigation 
tor which Japan affords special facilities; but in no department 
has there been more hopeful progress ‘than in the study o 
Seismology. 
The opportunities for the development of this science in Japan 
are exceptiona arthquakes are here quite Saat 
native records of 817 shocks in the fourteen months from Nov. 
1, 1854, to Dec. 31, 1855. The earthquakes also are mostly of 
moderate intensity ‘and therefore better fitted for instrumental 
study than those violent and destructive convulsions which leave 
their record in ruined cities and decimated communities. The 
centers of learning and science, where are aN gathered 
the greater number of persons qualified and disposed for suc 
in eeacg: are on the shores of Yedo Bay, a district pate 
native Japan ese, I. Z. Hattori, A. B. recs and for its vice- 
president. Professor John Milne ; and which has printed, as the 
result of its first year’s work, a volume of Transactions amount- 
ing to 188 octavo pages. Accounts of the work done in this 
society and contributions from its members on topics related to 
Seismology are also published from time to time in the Japan 
Gazette. 
* Read before the Princeton Science Club, Oct. 27, 1881. 
