20 president's ADDRESS. 



in the whole of the British Kingdom. In one order of the 

 Crustaceans alone (the Stalk-eyed or superior Crustaceans), 

 Mr. Sinel observes that we have no less than ninety of the 

 approximately one hundred species recorded as found in 

 British Waters. Both Jersey and Guernsey can separately 

 boast of at least 85 of these. In sponges we have about 

 120 species, and the sea slugs and sea worms number not less 

 than 180 species. In the other classes of marine animals 

 the islands are equally rich. 



On looking through some of the Old Natural History 

 periodicals, I was struck by the number of records of rare 

 mollusca which had been gathered on these shores. 



Many of these records are due to the labours of the 

 late Dr. Lukis, and I cannot forbear from quoting in this 

 address an extract from " Grwyn Jeffery's British Con- 

 chology." 



Mr. Jeffery says : — " I cannot resist the opportunity of 

 acknowledging my gratitude for the valuable aid and 

 communications which I continually received from this kind 

 friend for many years and up to the time of his lamented 

 and premature death. 



" His gifted mind, varied acquirements, generous nature 

 and great amiability, fascinated all who had the good fortune 

 to know him. He was a true naturalist. These and 

 collectors are too frequently classed together, but there is 

 an essential difference between them. The former loves 

 science for its own sake, and not for the childish pleasure of 

 acquiring many rare species or even an unique specimen. 

 He is never selfish or covetous, his only craving being for 

 the sympathy of others who have the same tastes as himself. 

 The mere collector is generally not so intellectual or 

 estimable. Dr. Lukis exemplified this difference. 



The feelings which prompted him to share the discovery 

 above mentioned with a brother naturalist, were doubtless 

 the same as those expressed by the most philosophic of our 

 modern poets in the following lines :- — 



' Often have I sighed to measure 

 By myself a lonely pleasure, 

 Sighed to think, I read a hook 

 Only read, perhaps by me ! ' 



" May such characters never be wanting in our land ! ' ' 

 To those wishing to commence the study of Marine 

 Zoology, I may mention that there is a beautiful collection 

 of more than 600 specimens, all properly named and classified, 



