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presented more closely: one is watching an example in the 
hopes that pseudopodia may be extended, or to have a view 
previous to treating the example with a re-agent, and, per- 
haps, nothing particular as yet discloses itself, when, I might 
say, all of a sudden, there appears to grow off from the peri- 
phery, an at first homogeneous, pellucid, rather sharply 
bounded, nearly colourless, or very faintly bluish, sarcode 
border, either nearly simultaneously all round or at one part 
only first; or, it may be, that this never, during protracted 
observation at least, presents itself universally. The first 
time I noticed this seeming sudden growth of this very subtle, 
or, as I might almost say, of this ethereal-looking covering, 
it was certainly with some surprise. One watches, and this 
delicate halo grows here and there broader, again narrowing 
here and there, keeping up this play for a length of time ; 
and so the border, hardly ever at one time of equal depth for 
any long stretch, thus presents more or less of a broadly- 
lobed outline. ‘The broader and more pronounced this enve- 
lope gets as one watches, the more readily is seen in its very 
attenuated looking substance, when focussed equatorially, a 
number of radial lines, beginning at the surface of the outer 
coat, and reaching to its own outer contour. These lines are 
not always like continuous striz, but of a dotted or, so to say, 
somewhat shaky appearance. A moment more, and probably 
they cannot be discerned ; and yet, in a brief interval, they 
seem at once, perhaps all round, to reappear. When these 
dotted lines are about most pronounced, so also, though 
always sharply marked off, is the edge or outline of the hyaline 
investment most pronounced, and the lines seem to broaden 
there and form a bluish margin to the whole, this again soon 
becoming paler and disappearing. I have tried to realize the 
most pronounced appearance of this pretty condition in my 
Fig. 3. After a short while again, perhaps, this beautiful 
play ceases, and this hyaline investment disappears, nor 
longer leaves any appreciable evidence of its having been. 
I have said there is sarcode abstinent and sarcode vora- 
cious—these idiosyncrasies, as if bound up with certain forms, 
and maintained, so far as I can see, seemingly irrespective of 
the supplies around. Our rhizopod does not belong to the 
former category, but neither still is it a hungry form. Crude 
food within its substance is not abundant, nor, as a matter of 
course, are the objects incepted large in dimensions, consist- 
ing seemingly only of minute protococcoids, and such like. 
In the first gathering in which I met this rhizopod, there 
occurred numerous examples of a curious little chrdococca- 
ceous alga (one endowed with a locomotive power, and one 
