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have formed the Buddhist triad, or ‘‘ droge symbol.’’ A similar repre- 
sentation is found on other stones, in which the third member of the 
triad, or organized matter, was a segment of a circle, a bird, and in the 
present instance appeared to be a monstrous elephant. 
Those heathen symbols, in combination with the Christian cross, 
prove the liberality of their sentiments, when, probably, a large propor- 
tion of the Celtic nation were idolaters ; and they are peculiarly inte- 
resting, as, probably, the same symbols will be found in Ireland and 
other Celtic countries, and thus prove an analogy in the belief of those 
nations before they became Christian. 
It is probable that the original of the cross now before the Aca- 
demy was placed over the grave of the chief represented on horseback, 
on the back of the stone, who had changed the Pagan worship for that 
of the Christian faith. 
The thanks of the Meeting were voted to Dr. Wise for this valuable 
gift. 
MONDAY, FEBRUARY 14, 1859. 
Joun Kris Ineram, LL.D., Vice-President, in the Chair. 
Josrpx Reay Green, Esq., Professor of Natural History, Queen’s 
College, Cork, was elected a Member of the Academy. 
Dr. E. Percevat Wricut, F. L.8., read a paper by Proressor 
J. Reay GresnE— 
ON THE MORPHOLOGY OF THE HYDROZOA, WITH REFERENCE TO THE CONSTI- 
TUTION OF THE SUB-KINGDOM C@LENTERATA. 
Tue author commented on the zoological relations of the animal forms 
included by Cuvier under the classes Polypi and Acalephe, and showed 
the necessity of uniting these organisms into a sub-kingdom by them- 
selves, as had been done by Frey and Leuckart, the results of whose 
labours had been further corroborated by the independent observations 
of Huxley. For this sub-kingdom the name ‘‘ Ceelenterata,”’ had been 
proposed by its founders. The author next proceeded to prove that the 
classes Polypi and Acalephee of Cuvier were far from natural, inasmuch 
as they were framed without a due regard to anatomical characters. He 
then considered, in detail, the morphology of the groups in question, 
and, after reviewing the results of the investigations of Huxley, Kéellker, 
Teuckart, Vogt, and others, concluded by pr esenting the following classi- 
fication of the Coslenterate sub-kingdom :— 
Sus-kInepom.—CCHLENTERATA. 
Animals in which the digestive canal freely communicates with the 
general cavity of the body. Substance of the body consisting of two 
distinct layers. The peculiar urticating organs termed ‘thread cells” 
usually present. 
R. I. A. PROC.—VOL. VIT. T 
