PROGRESS OF MICROSCOPICAL SCIENCE. 
27 
nation the material was found in large proportion to consist of the 
dead shells of Foraminifera. The immense quantities of these remains, 
extending in innumerable ridges over the broad expanse of the beach, 
had led him to suspect that he would find them living in the greatest 
jirofusion in the dredgings off the coast of Noank. In this view he 
had been disappointed, though many living individuals were obtained 
in dredging, adhering to liydroids, sponges, and the roots of fuci. The 
number of species observed was small, though the individuals of several 
of them were numerous. In the best condition, and especially abun- 
dant, were two Foraminifers, a Miliola, and a Rotalia, exhibiting some 
variety of form. 
The Miliola resembles the Quinqueoculina mcredionnlis of Dorbigny, 
and is probably the same species. The shell, from A to ^ of a line 
in breadth, is white and more or less translucent, or is colourless and 
transparent. It exhibits five compartments or cells, in the mouth of 
the last and largest of which there is a blunt, conical tooth. The 
interior soft structure was yellowish brown, or pinkish brown, darkest 
in the smallest cell, successively lighter in the others, and sometimes 
nearly colourless in the last or largest cell. In the last cell, and less 
frequently in the second cell, the soft matter exhibited many globules 
of transparent, colourless liquid. In the active condition the animal 
protruded a multitude of exceedingly delicate pseudopods, which, radi- 
ating from the mouth, ramified and frequently anastomosed in the most 
intricate manner, as usual among Foraminifers. 
The Rotalia is a beautiful, spiral, many-chambered shell, from the 
to the { of a line in breadth, and strongly resembles the Rosa- 
lind varians, as represented in fig. 8, plato iii., of Schultze’s Poly- 
thalamien. The shell is white and more or less translucent, and is 
composed of from twelve to eighteen cells. The soft structure within 
is dark reddish or yellowish brown in the smallest cells, light brown 
or yellowish in the larger cells, and faintly yellowish or colourless in 
the largest cells. Pseudopods radiated everywhere from the minute 
pores of the shell. 
A few Polythalamous shells were observed, which appeared to be 
composed of particles of sand cemented in the same manner as in the 
fresh-water Difflugians. One of them was a spiral shell, like a Rotalia, 
composed of eighteen cells, and measuring about \ of a line in 
breadth. The soft structure within the smallest cells appeared to be 
amber-brown. 
Another of these arenaceous shells resembled in its shape and the 
alternation of the cells the Textilaria agglutinans of Dorbigny, of the 
West Indies. A specimen of thirteen cells was about the T \j of a 
line long by T T ff of a line at the broad end. The soft structure was 
reddish brown within the smallest cells, becoming successively lighter 
in the larger cells, until in the last or largest it was colourless, or 
nearly so. 
A third form consisted of a straight or slightly bent series of cells, 
for the most part oblate spheroidal, and successively increasing in 
size. The first cell is globular and larger than the few succeeding 
ones. The last or largest cell is more of a conical form. The interior 
