46 



TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



end of the tenth year. In this year we find also the commence- 

 ment of the investigations by Professors Boyce and Herdman 

 on the life conditions and health of the Oyster and the incidence 

 and effect of certain diseased conditions. The results were 

 communicated to successive meetings of the British Associa- 

 tion, and were also published in the Annual Reports of our 

 Committee. The experimental work was carried on during 

 these years partly at Port Erin and partly in the laboratories 

 of Liverpool University. 



Fig. 



7. Delesseria hypoglossum, 

 magnified. 



Fig. 8. Himanthalia lorea, showing th 

 button-like fronds and th 

 thong-like fructification. 



It is unnecessary to record year by year the dredging and 

 collecting expeditions and the various additions made to the 

 fauna. Lists of them will be found in the successive Reports. 

 But it may be mentioned that about this time Mr. Andrew 



