40 
Royal Irish Academy. 
Dr. E. Perceval Wright reported that he had, as Representative 
of the Academy, attended the International Congress of Zoologists, 
held in Paris in the month of August. 
Prof. G. F. Fitz Gerald, p.r.s., f.t.c.d., read a Paper, by Sir 
William Thomson, p.r.s., On the Stability and Small Oscillation 
of a Perfect Liquid full of nearly Straight Coreless Vortices." 
Prof. W. J. SoUas, f.e.s., read Contributions to a Knowledge of 
the Granites of Leinster." 
The President then presented to the Academy an Oil Portrait 
(by Miss Purser) of himself. 
Donations to the Library and Museum were announced, and 
thanks were voted to the Donors. 
