MARINE BIOLOGICAL STATION AT PORT ERIN. 27 



in these specimens under the binocular, as in this condition 

 their structure is far more clearly seen than in fixed material. 



"During the good tides I collected not only additional 

 specimens of Doris, but also a considerable amount of the 

 spawn which is abundant on the rocks at this time of the year, 

 its presence being in fact the best guide in the search for adult 

 specimens, which are themselves much less conspicuous than 

 the spawn. Unfortunately, the development of the eggs will 

 not proceed successfully for any length of time in the aquarium 

 tanks, so that I was obliged to collect pieces of spawn in different 

 stages of development. Intra vitam staining of the veligers 

 with neutral red gave interesting results. 



" I fixed a considerable amount of material for further 

 investigation in Liverpool. 



" My second period at Port Erin was from August 21st 

 to 28th, when I was unable to do any further work on the 

 living animals for want of fresh material, which could not be 

 obtained at that time of year. 



"I gladly acknowledge the help afforded me by the 

 Biological Station, both in connection with the collection of the 

 necessary material, and also in the subsequent work upon it. 

 I hope to complete the investigation in the University 

 Laboratory of Zoology, at Liverpool. 



(Signed) E. L. Gleave." 



L.M.B.C. Memoirs. 



Since our last report was published, no further Memoirs 

 have been issued to the public. Himanthalia, by Miss L. G. 

 Nash, M.Sc, is ready to print : Miss E. L. Gleave, M.Sc, has 

 nearly completed her Memoir on Doris, the Sea-lemon ; 

 Mr. Burfield, who was writing the Memoir on Sagitta, has 

 joined the Army ; Miss Bamber has made some progress with 

 Tubularia, and still other Memoirs are in preparation. 



