. The Bible and science. ough excepting at one point, andthat instead of throwing out pseudopods at any part ofthe surface, it can only do so at this particular it is obliged to take in all its nutriment andthrow out all the undigested it^fuse, and at this pointonly is it capable of moving. In another we find thesame thing, with the exception that instead of the surfacemerely becoming hardened and tough, it is covered withparticles of sand, which the animal seems to have thepower of gluing on to itself. In others the surface iseither covered with isolated spicules of silica, or with
. The Bible and science. ough excepting at one point, andthat instead of throwing out pseudopods at any part ofthe surface, it can only do so at this particular it is obliged to take in all its nutriment andthrow out all the undigested it^fuse, and at this pointonly is it capable of moving. In another we find thesame thing, with the exception that instead of the surfacemerely becoming hardened and tough, it is covered withparticles of sand, which the animal seems to have thepower of gluing on to itself. In others the surface iseither covered with isolated spicules of silica, or with aflinty coating consisting of these more or less united,leaving holes between them through which pseudopodia rORAMINIFERA. 1-25 can be protruded. In others, again, the case is com-posed of chalk, which the animal seems to have thepower of secreting. From the holes or foramina inthe case such rhizopods are called of these amoeba-like creatures, instead ofseparating from each other completely, as the two. vr-.:.>^-j Fig. 5o.—a foraminifer with extpnded pseudoporlia which pass through the pores ofthe multiloculate shell. halves of a dividing amoeba would do, remain par-tially attached, and thus form a multiple animaLEach member of this community, as we may term it,surrounds itself with a shell, often of a most beau-tiful structure, and, small though the creaturesthemselves may be, they swarm in the seas in such 126 INFUSORIA. immense multitudes that their accumulated shells havebuilt up the pyramids of Egypt and the chalky cliffsof Englands coast. The next order, that of the Infusoria, is con-siderably higher in the scale than the amoeba order,or rhizopoda, which we have already considered, but it
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