Geology and Natural History. 321 
" . > on Trdg- 
coefficient eines Magnetes und iber die pa aay icone 
heitsmomenten. durch Bifilarsuspension. — Messrs. 
nd F. Kourer 
coun ient of in- 
determine the polar distances of a mpagnet ine cost given by 
duction and temperature, and the moment o ‘ te memoir will be 
the method of bifilar suspension. The comple 
published later. 
Ww 
and Potsdam groups.— R. HITFIELD, dolesis. of N we 
Primordial fossils, contained in the Am Museum, expresses the 
York, published in Bulletin No. 5 of the Mu ’ 
o ate 
lower beds j Wisconsin, for the same type of ¢ tir cat te 
sal in euithrs aes the Brachiopods, Orthis eae cae ily i 
Cina Acadica (if a Brachiopod), are of newer type 
in fauna. s to the Dis 
: . ; ‘ibed 
from New York. Moreover, his Orthisina isc hear 20 
in the paper, from Geor ia, Vermont, he sac Shas epin Orthi- 
and may be identical with the Wisconsin an — 
St j f Hall. he Ro 
oy tea Schenciets ste a paper pease enteritis Sas 
Dublin Society in November, 1882, Professor ements in throwing 
tion to the effects of land-slips or soil-cap mov 
