R. D. Irving—Huronian Series of Northern Wisconsin. 3938 
Art. XLVIII.— Observations on the Planet discovered March 21st; 
by C. H. F. Peters. (From a letter to the editors dated 
Litchfield Observatory of Hamilton College, Clinton, N. Y., 
April 2d, 1879.) 
I TAKE pleasure in communicating the following observa- 
tions on a planet discovered on March 21st, the only ones the 
bad weather has permitted me to make. 
1879, H. C. mean t. a@ (194) é (194) No. of comp. 
March 21 14"15™47° =: 12812™ 3-915 + 9°96'30"2 20 
ey 9 23 12 12 4 20°07 +11 1 3°9 
April 1 911 13 12 3 34°63 +1110 1°6 10 
The planet is bright eleventh magnitude. On the same 
evening [ found still another planet, 10th magnitude, and 
observed it; 
March 21. 
11" 32" 21° mt, @==11" 58" 45°49; d= 49° 18/ 2"8 (16 comp.) 
As my computations from the elements (the Berlin ephem- 
erides have not yet arrived) did not indicate any of the older 
planets in that place, I had reason to believe this one too a 
new one, and accordingly gave publie notice of it. Professor 
Foerster, however, remarks that this is Leto (68). And indeed, 
I find now, that in the elements of Leto given in the Berlin 
Jahrbuch there is an error of print made in 1877, and perpetu- 
ated through the later volumes until 1880. The epoch printed 
there, 1874, should read instead 1864. 
Art. XLIX.—WNote on the Stratigraphy of the Huronian Series 
of Northern Wisconsin; and on the Equivalency of the Huro- 
n , 
nian of the Marquette and Penokee Districts; by R. D. InvING. 
, and Kewee 
Brooks’s section is professedly a rough one only. 
