49 [Vol. xxxvi. 



wards Admiral Sir Richard C.ollinson) in search of Sir John 

 Franklin, 1850-1855. A number of eggs were collected 

 during the voyage, some of the more important of which, 

 such as those of the American Stint (one of which was 

 also taken by Singleton), Semipalmated Sandpiper, Pectoral 

 Sandpiper, Baird^s Sandpiper, etc., are now in the British 

 Museum. The egg in question could not be confused with 

 any of these, and bore no resemblance to that of the 

 Dunlin. There was no reason to believe that H.M.S. 

 ' Enterprise ' visited Lancaster Sound, which was probably 

 an error of the copyist.^' 



Mr. Ogilvie-Grant said that the label accompanying the 

 supposed Sanderling^s egg from Wollaston Land had been 

 copied by Mr. J. R. Reid from the Crowley Register of Eggs, 

 which had been returned to the owner in 1902. Mr. Reid 

 was an extremely careful worker, and the particulars given 

 on the label had probably been quite accurately transcribed 

 by him. 



Among the eggs collected by Admiral Sir Richard 

 Collinson and presented to the British Museum, there were 

 no eggs of the Sanderling, and the evidence in favour of the 

 specimen from Wollaston Land being an egg of C. arenaria 

 was entirely presumptive. 



Mr. Launcelot Harrison, B.Sc. (Research Scholar, 

 Quick Laboratory, Cambridge), then opened a discussion on 



Bird Parasites and Bird Phylogeny, 

 with a paper, of which the following is a summary ^ : — 



The bird-parasites referred to belong to the insect order 

 Mallophaga, and are minute insects, of an average length 

 of two millimetres, found upon all birds. They are com- 

 pletely parasitic in all stages of their life-history, the 

 eggs being attached to the feathers of the host, and giving 

 rise to a larva generally similar to the adult. They are 

 incapable of maintaining life for more than a couple of days 



* Mr. Harrison's paper will be published in extenso in the next 

 number of ' The Ibis.' 



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