PROCURING SPECIMENS. 21 



specimens of the Common Crab and Lobster ; 

 the Hippolytes ; Pandalus ; Gammarus ; Idotea. 

 Among Annelides, the Sea Mouse ; the Nereides ; 

 and the Planarice. Of Echinoderms, the Cribella, 

 Palmipes, Asterina, Asterias, Echinus and Cucu- 

 maria. 



Procuring Specimens. — By far the most in- 

 teresting mode of acquiring your stock, is the 

 collection of them by your own personal research. 

 But as this is not in every case practicable, we must 

 have recourse to the labours of others. In London, 

 Mr. W. A. Lloyd, 19 and 20, Portland Koad, New 

 Koad, is a "Dealer in Living Marine Animals, Sea- 

 weeds, Artificial Sea-water, and Marine and Fresh- 

 water Aquaria:" he will undertake the whole la- 

 bour of supplying and stocking these interesting 

 repositories of ocean life.* 



Transmission of Specimens. — Both plants and 

 animals should be forwarded to their destination 

 as soon after they are collected as possible ; but, if 

 they are detained, they may be kept in pans of 

 sea-water, exposed to the light. The vessels, how- 

 ever, must be protected from heavy rains, as the 

 admixture of a large quantity of fresh water would 

 be fatal to both plants and animals. Should much 

 rain have fallen on a vessel containing specimens, 

 it should be carefully tilted, so as to allow the 

 fresh water, which, from its less specific gravity, 

 will be lying on the surface, to run off without 

 mingling with the other. If this be well done, 



* Mr. Lloyd is constantly supplied with marine animals from 

 the Kent, Dorset, South Devon, North Devon, and Welsh coasts, 

 and occasionaUy from Cumberland, and the Channel Islands ; 

 so that his stock in London possesses a variety not to be found 

 in any single locality on our shores. 



