1871 J 167 { Kirkwood. 
1 Dione = 13 
2 oe Enceladus — 138 9 
5 
The interior radius of the outer ring = 
eo or 
io) 
Ja) 
oo 
Co 
The radius of a circle bisecting the outer ring = 
‘ ‘ ne h ~,m 
The distance of a satellite whose period is 12° 56 
rw) 
as 
is 
~z 
(oo) 
Dh ey 
The distance of a satellite whose period is 13” 9 2.1510 
The exterior radius of the outer ring == 2.2456 
Tt is thus seen that just beyond the middle of the outer ring, where the 
division is actually found, another zone occurs in which the periodic times 
of satellites would be commensurable with those of Mimas, Enceladus, 
Tethys and Dione. 
The Facts detailed in the preceding pages are unquestionable. In re- 
gard to the proposed explanation of these facts the writer would speak 
with becoming caution. In his humble attempt to reduce a large class of 
isolated truths to the domain of law some important considerations may 
have been overlooked. Be this as it may, he indulges the hope that abler 
astronomers may deem the enquizy not unworthy their researches. 
Stated Meeting, Oct. 6th., 1871. 
Present, fifteen members. 
Vice President, Mr. FRALEY, in the chair. 
A photograph for the Album was received from Professor 
E. N. Horsford, dated Cambridge, Massachusetts, October 29, 
Letters of acknowledgment were read from the London 
Meteorological Office, September 22 (88, 84, 85); and the 
Buffalo Society of Natural Sciences, December 1, 1870 
(XI Pro). 
Letters of envoi were received from the Natural History 
and Historical Union of Donauerschingen, September 15, and 
the United States Secretary of the Interior, Washington, D. 
C., September 185, 1871. 
A recent letter from Mr. Carlier to Mr Durand, was read 
by Mr. Price, who offered a Resolution, which was adopted, 
authorizing the presiding officer of the meeting to execute 
