58 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



single copy at Port Erin has been frequently consulted and 

 taken out on loan. Consequently, we have now been induced, 

 by many demands from our students and from visitors at the 

 Biological Station, to reprint our former paper, with consider- 

 able additions, so that it may constitute an illustrated guide 

 to the more important of the ancient monuments and other 

 remains on the island — and in this form it will be found 

 appended to the present Report " (18th Report, for 1904). 



The Report contains also some interesting biological 

 observations, such as Dr. Ashworth's discovery of young 

 ^specimens of the curious partly parasitic Copepod Monstrilla 

 in specimens of the small tubicolous worm Salmacina obtained 

 on the ruined breakwater, the finding by Mr. A. D. Imms of 

 a pseudo-scorpion Obisium maritimum which has otherwise 

 only been recorded from the coast of Devon, the report by 

 Mr. A. Scott on the fish eggs and larva? obtained in the Port 

 Erin tow-nettings, and Mr. Chadwick's careful drawings of 

 the characters seen after each moult in the development of the 

 lobster. 



Twelve L.M.B.C. Memoirs— the last two being " Arenicola " 

 by Dr. Ashworth and " Gammarus " by Miss Cussans — had now 

 (1904) been published and another dozen or so (most of which 

 have since appeared) were announced as in progress. This 

 series of detailed studies of useful common types seems to be 

 meeting with general approval in University laboratories. 



The 19th Annual Report (1905) contained the second 

 (revised and enlarged) edition of the " Guide to the Aquarium," 

 and it may be noted that this year the number of visitors had 

 increased to over 13,000. We may fairly claim that by means 

 of the exhibition tanks and the Aquarium Guide our Institution 

 is doing some educational work in spreading a knowledge of 

 marine biology and encouraging nature-study amongst the 

 inhabitants and summer visitors of an important sea-side 

 resort. The total number of visitors to the Aquarium from 

 August, 1902, to November, 1919, is 204,553. 



