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POPULAR SCIENCE REVIEW. 
then there was a movement of some of the granules and other 
microscopic bodies amongst the mass, like a flowing here and 
there, but still with a tendency towards streaming in one gene- 
ral direction ; and the clearish circular space suddenly be- 
came obliterated, and slowly reappeared again, and enlarged. 
Soon the outside diaphane began to creep from the end of 
the endosarc, so that very shortly the Amoeba assumed a rela- 
tive condition of the diaphane and endosarc which was never 
subsequently lost (fig. 10). The endosarc reached to the edge- 
of the Amoeba in one part, and the diaphane kept to the 
opposite end, some slight film of it just encasing the whole, ex- 
cept now and then. Although the granules and other very 
visible matters usually kept away from the bulk of the diaphane, 
every now and then a rush would take place amongst them, and 
then the diaphane being made ragged by some projections of it,, 
some granules would stream along towards and sometimes 
close to the diaphanous edge (fig. 4). The motion of the 
whole Amoeba was in one general direction, the endosarc end 
being, as it were, dragged after the other. But the internal 
motion amongst the granules &c. immediately preceded the 
slow projection of a part of the diaphane ; and as this was re- 
tracted, or as the whole body progressed beyond it, there was a 
return of the endosarc to its place of concentration. Very slow 
was this Amoeba ; and indeed, further experience, after the ex- 
amination of many of them, proved that this dignified pace was 
more or less invariable. It never projected long processes,, 
rarely took in food, and often rolled over most tempting things,, 
things with which other Amoebae are often crowded, but they did 
not sink into the mass and become dissolved. Its endosarc end, 
however, now and then adhered to minute broken-down organic- 
matter and small diatoms, and they were dragged along with 
the whole. Now and then small portions were drawn in by the 
endosarc at one point where the diaphane was thinnest, but the- 
proceeding was very tedious, so that the watching was long and 
tiresome before the green or red food was seen in and amongst 
the streaming and moving endosarc. 
It appeared as if great care was required to take in the 
minute grain of food so as not accidentally to let out a quantity 
of the endosarc during its constant motion and streaming. The 
same slow process accompanied the getting rid of digested 
food and some minute spheres which were eventually to become 
Amoebae. Then the endosarc projected so as to be covered 
with a very thin film of diaphane, and one of two things hap- 
pened. Either some granules came close to the edge of the 
diaphane, and this was penetrated by a number of them (figs- 
14, 15), or a very fine thread of granules pushed out a covering 
of diaphane far beyond the edge, and then the contents were 
