202 
Mr. Galbraith on “‘ The Chemical Composition of the Felspar found 
in the Dublin and Wicklow Granites; from Dr. Allman on ‘“‘ The 
Existence of a true Medusoid Structure in the Male Gemme of Hy- 
dra,” and on “‘ Aphanizomenon Flos-Aque ;” from Dr. Harvey on 
‘¢The Marine Botany of Western Australia ;”” and from Professor 
> with several 
Downing, on ‘‘ The Draining of the Haarlem Lake;’ 
others. 
In Polite Literature, Dr. Hincks has contributed a paper on 
**The Chronology of the Twenty-Sixth Egyptian Dynasty and of 
the Commencement of the Twenty-Seventh.”” The same author 
has also given us a paper on ‘‘ Assyrian Mythology.” Professor 
Graves has made a communication on “ The Comparison of Adjec- 
tives in the Ancient Irish Language.” 
In Antiquities, Mr. Charles Mac Donnell has made a communi- 
cation relative to the MSS. of the celebrated John Colgan, preserved 
at St. Isidore’s, Rome. We have also received a communication 
from Dr. Ball, on ‘‘An Attempt to prove the Age of the large 
Bronze Trumpets in the Museum.” 
The Proceedings of the Academy have appeared with great re- 
gularity. 
The Council regret that the progress in the preparation of a Ca- 
talogue of the Museum has not been as rapid as could be desired. 
A Report from the Committee appointed to superintend this work is 
here subjoined. 
During the past year some important organic changes in the 
constitution of the Council have been carried into effect. 
The duties heretofore discharged by the Committee of Publica- 
tion have been delegated to the Council at large, who are also em- 
powered to obtain the assistance of any other Members of the Aca- 
demy, whose acquaintance with the subject of any one or more of 
the papers submitted for publication may enable them to give to the 
Council valuable suggestions in the discharge of this important task. 
This change will probably be considered to be calculated to add to 
the efficiency of the publishing department. 
At the Stated Meeting held in March last, the Academy expressed 
their opinion that it would be desirable to secure a greater amount 
of rotation among the Members of the Council than exists at pre- 
sent. In accordance with this opinion, the Council submitted to the , 
