72 | Scientific Intelligence. 
n der Erde lebende Ameeben, ete.),led me to look in similar posi- 
ene for Rhizopods. 
e earth, about the roots of mosses growing in the crevices 
of the bricks of our city pavements, in damp places, besides finding 
several species of Amocha a, together with abundanee of the common 
utmost pleasure I have watched this curious creature for hours 
together. _ genus was discovered and well described a Dujar- 
din, from t 0 species, one of which, G. oviformis, was found in 
the seas et France; the other, the @. fluviatilis, in = River 
arent ne an animal, like one of our autumnal spiders, stationed 
at the pee Se of its w ‘ell-spread net ; imagine every thread of this 
net to be a living extension of the kitts elongating, branching, 
and becoming confluent so as to form a most intricate net; an 
imagine every thread to exhibit actively moving currents of a vis- 
cid liquid both outward and inward, carrying alor ng particles of 
food — bigs and you have some idea of the general character of 
a Grom 
The Gre romia of our pavements is - spherical cream-colored body, 
about the ;;thof a line in diameter. When detached from its 
| and placed in water, in a few minutes it oat in all 
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crevices of o S SLane: bis ‘that in rains or wet weather the 
little iaabare puts forth its living net, which becomes so many 
avenues along which food is conveyed to the body. As the neigh- 
borhood becomes dr y, the net is withdrawn to await another rain. 
The animal with its extended net can cover an area of nearly h half 
a line in diameter. The threads of the net are less than the sudnoth 
of an inch in diameter.— Proc. Acad. Nat. Sci. Phil., 1874, 3 pe 
23. Nature of the Sea-bottom.—Prof, ©. Wrviiie Tuo 
has presented to the Royal Society a paper entitled Pretiainar | 
Notes on the nature of the Sea-bottom procured by the sounding 
of H. M. 8S. Challenger during her cruise in the Southern Sea 10 
the early part of the sr 1874, which are published in “ Nature” for 
December and January. e following are oe from 
€ 
the 
was breagbed up which was found to consist of casts of foramini- 
fers in a glauconite-like anlesal The genera saetnded Miliola, 
