182 PROCEEDINGS OF SOCIETIES. 
sion to the Cosmarium shown by Dr. J. Barker at last meeting of 
the Club, in order to draw attention to the great differences 
between them, both in size and figure. 
Dr. John Barker exhibited blood of the Napu Deer (Tragulus 
Javanicus), composed mostly of red corpuscles which are amongst 
the smallest in mammalia, measuring, according to Gulliver, 
s+zizs" in diameter. As far as Dr. Barker could see, they are 
not perfectly round. 
December 21st, 1865. 
Dr. John Barker showed specimens of an Acineta, which had 
become produced in considerable quantity in a gathering made so 
long ago as the occasion of the Lugnaquilla excursion. It was 
very interesting to watch the disappearance and gradual return 
of the well-marked circular contractile vacuole. He had noticed 
a curious kind of swarming movement of the granular contents, 
not like the jerking or dancing movement of the granules (as, for 
instance, in the Desmidiacex, &c.), but aslower and more decided 
change of place of the particles in a curious writhing manner. 
Mr. Archer drew attention to the seemingly not uncommon 
but remarkable organism <Anthophysa Miilleri, lately taken by 
Dr. J. Barker near Finglas. Mr. Archer read a lengthened 
extract from Professor Cohn’s remarks on this curious production 
in his ‘Untersuchungen tiber die Entwickelungsgeschichte der 
mikroskopischen Algen und Pilze,’ pp. 109 et seg. The specimens 
now exhibited, probably being too long kept, did not show any of 
the Uvella-like bodies at the summits of the so-called “Stereonema” 
filaments, which Dr. Barker and he had seen in company. How- 
ever, at the apices of some of the younger, pale greenish, or 
colourless filaments of the same, and not a distinct organism, a 
single globose body was here and there seated, with pale granular 
contents, seemingly the forerunner, by subsequent division, of a 
future Uvella-like family. On the present occasion a specimen 
turned up in which the body at the apex of one of the filaments, 
here of an elliptic shape, had its contents divided into a number 
of portions, still confined within their common boundary. It 
became a question as to this being a more advanced state, tending 
towards the Uvella-like family. In any case this may, perhaps, be 
of some interest, as Cohn had not seen these bodies otherwise 
than as fully developed Uvella-like clusters. Mr. Archer was 
disposed to think that the filaments themselves grew and branched, 
and that the indications seemed to point to the conclusion that 
the Uvella-like bodies were a subsequent development at the 
summit of certain seemingly soft, and younger, and nearly colour- 
less branches, not that the Uvella-like bodies developed the stipes 
analogous to that of Gomphonema, &c., amongst diatoms. Thus, 
