1 913' Irhh Societies* 137 
members of the Club. The outgomg Officers and Committee were re- 
elected, M. Holland being added to the Committee. 
April 30. — Geological Excursion. — A visit was paid to the Glacial 
deposits on the south side of the College Road, and to the limestone 
quarries, north and south of Dennehy's Cross. Boulder-clay, glacial 
markings, &c., were pointed out, and bedding, cleavage, and jointing 
explained. A visit was subsequently paid to the seismograph at Univer- 
sity College. Professor Swain acted as conductor. 
May 28. — Excursion to Fota. — A party of 30 visited Lord Barry - 
niore's demesne, Fota Island, Queenstown. The members were met by 
Mr. Besswick, who conducted them through the grounds — the ponds 
also with their variety of aquatic plants, the fernery, the bamboo garden, 
and the " Italian garden " being shown. Many rare exotic plants flourish 
at Fota, the collection of trees of various species being particular!}^ fine. 
Squirrels were in evidence during the visit, and it was pointed out that 
they have increased considerably in the demesne during recent years. 
REVIEW. 
TEE LITERATURE OF ASCIDIANS. 
A Bibliography of the Tunicata, 1469-18 10. By John Hopkinson. 
London: Ray Society, 1913. xiii. -f 288 pp. Price 15s. net. 
Whilst engaged in the arduous task of editing Alder and Hancock's 
" British Tunicata," Mr. Hopkinson found it necessary to compile a 
Bibliography of works dealing with this neglected section of the British 
marine fauna. It was his intention to issue it as a supplement to the third 
volume of the " British Tunicata," but in the year 1906, acting on the 
advice of Canon Norman, he decided to include all works treating of the 
Tunicata, down to the end of the year 1910. The result is now issued as a 
separate work. It will be a valuable aid to students of the Tunicata, 
and in a lesser degree to all marine zoologists. The references to the 
scanty literature dealing with Irish Tunicata seem to be complete. Every 
possible reference to a Tunicate seems to have been included, from Aristotle 
to Herdman, and from obscure text-books of zoology to Victoria County 
Histories. Nevertheless, one receives the impression that this group of 
animals, so interesting and significant to the evolutionist, has notreceived 
its proper share of attention in comparison with other groups. This is 
undoubtedly due to the difficulties inherent to the systematic study of the 
Tunicata, and to their lack of direct economic interest. 
R.S. 
