Proceedings of the Royal Irish Academy 
Another specimen of the same, chlorophyll-granules not so abundant 
as in the foregoing, nor the superficial hair-like processes so long, 
showing several vacuoles, three at the periphery — two of which, at 
the point of greatest distention, press up the outer coat — the third, 
on the bare pseudopodial region ; showing, also, two conical pseudo- 
podia projecting through the outer coat; a minute reddish-coloured 
alga has been incepted as food. This specimen did not disclose the 
"nucleus;" but there could be no doubt that further examination 
would have revealed it, but it was desirable to sketch the example 
with its natural appearance as regards the other details. 
Another specimen of the same, showing the stratum of elliptic bodies, 
but neither chlorophyll-granules, nor pseudopodia, nor vacuoles ; 
the " nucleus " is, however, apparent ; this example, though fitfully 
changeable in contour, presents no apparent opening or vacant 
region of the coat, the hair-like processes not evident, and is sur- 
rounded by a somewhat deep, changeable, very subtle, hyaline, 
bluish sarcode-envelope, showing faint vertical lines in its substance. 
A " protococcoid " is seen immersed in the body-mass, previously 
incepted. 
Empty coat of another specimen of the same found in the gathering, 
evacuated by the sarcode body-mass, but a few chlorophyll-granules 
and elliptic granules (accidentally) left behind. The outer hair- 
like processes are but short ; the general surface presents a coarsely 
dotted appearance. 
Another specimen of the same after application of a weak solution of 
iodine and iodide of potassium ; the sarcode body-mass has become 
retracted from the outer, slightly hirsute, now globularly expanded 
coat (thus proving its distinct and independent structure), and has 
become coagulated into several balls, these having retained in their 
substance the pale elliptic granules, but left outside the chlorophyll- 
granules as well as the " nucleus," which latter is seen to the left, 
having assumed a contracted and lobed, internally homogeneous, 
externally smooth, appearance. 
Three of the hair-like processes which had become somewhat expanded 
and then detached from an example of the same, after the at first 
slow action of sulphuric acid, and then showing a slightly capitate 
basal extremity and pointed apex. 
A preparation by treatment with Beale's carmine fluid of an example 
of "zygosis" inAcanthocystis spinifera (GreefF), showing in each of 
the "conjugated" individuals the central presumed vesicula 
intima," the outline of the presumed "central capsule," the pro- 
blematic opaque, colourless, shiny, elliptic body, the ordinary yellow 
oil-globules, and the outer linear and pointed spines ; these latter 
as equally distributed over the connecting isthmus as over the 
periphery of each of the conjugated individuals ; the specimen 
being " killed," pseudopodia, as a matter of course, have completely 
disappeared. 
A very small, presumably a young, example of the same in the living 
condition, showing the minute inner central body within the granu- 
lar general body-mass, the peripheral hyaline and glassy spines, 
and the very pellucid, extremely slender, filiform, straight, and 
long pseudopodia. 
A large example of the " Diplophrys-like " organism, having enclosed 
itself in the middle of an aggregation of frustules of heterogeneous 
minute diatoms and fragments, along with small fibrous and nonde- 
script shreds, and showing its nearly orbicular, faintly granular body 
with a large oil -like globule therein. [All the figures x 400.] 
