1895. |] NEW YORK ACADEMY OF SCIENCES. 109 
Cambrian times. This similarity of conditions thé resulted in \ 
deposition, first of the great series of red and green sediments 
of Pre-Cambrian age, then of the slates or shales (based upona 
sandstone member), which contain Olenellus and Paradoxides 
in one country and Protolenus and Paradoxides in the other, 
and then of the flags and shales that hold the Olenus Fauna. 
These similar series of deposits are now found remote from 
each other, and in small isolated basins ; but we are not therefore 
to assume that there may not originally have been a much closer 
connection between them, by means of areas of sediment either 
not now recognizable, or not now existing. The great dynami- 
cal movements that have occurred in this region since Cambrian 
time, the metamorphism of large tracts in the intervening space, 
and the enormous denudation that has supervened, all will have 
helped to remove the proof of such possible direct communica- 
tion between the Cambrian rocks of Acadia and Newfoundland. 
Descriptions of the Species. 
FORAMINIFERA } 
The first notice of remains of this group of the Protozoa in 
these Cambrian rocks is that in connection with W. D. Mat- 
thew’s article on Phosphate Nodules from the Cambrian of 
Southern New Brunswick.* In this article are several plates 
of the objects seen in microscopic sections of these nodules, and 
among them are several forms which we can now clearly see, are 
of this group,of the Foraminifera. 
Small shells of this order have not only been found in the 
phosphate nodules, but occur scattered over the surface of the 
shales, in which they are well preserved, owing to the firm cal- 
careous nature of their tests at the time of their entombment. 
All observed belong to the Perforata. Possibly other groups 
of Foraminifera are present, but such as have arenaceous coat- 
ings are not easily detected owing to the siliceous particles in 
the slate, its hardness, and the partial metamorphic change 
which it has undergone by the infiltration of chemical solutions. 
Most of the forms observed belong to the Globigerinide. 
ORBULINA cf. UNIVERSA, Lam. PI1.-I., fig. 1. 
See “ Phosphate Nodules” Pl. 1., Figs. 13 (& 15?). 
The commonest species of the Globigerinidz occurring in 
these shales is one which cannot be distinguished either by size 
*Trans. New York Acad Sci. Vol. xii., 1893, p. 108, pl. 1, 2 and 3. 
