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TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



considerable extent took the place of our earlier dredging 

 expeditions in hired steamers. In this first year of such work 

 I had chartered a small steam vessel, the " Madge," which lay 

 at moorings in Port Erin Bay during the summer and was 



Fig. 12. S.Y. " Ladybird " on a Plankton cruise at Easter, 1908. 



[Photo, by Edwin Thompson. 



used almost daily in suitable weather for dredging expeditions 

 in the neighbourhood, and more especially for taking a series 

 of plankton observations with various kinds of tow-net at 

 different fixed stations periodically and as frequently as possible. 



