VOL. VI.] EJECTION OF LINING-MEMBRANE. 335 



According to Messrs. Newton and Gadow, as a rule 

 this cuticle of the gizzard, which exists also in the simple 

 gizzard, though not in the hardened form, is continuously 

 wearing away and being reproduced, but many cases are 

 known in v/hich most of the lining is suddenly cast off 

 and ejected throught the mouth, as has been observed 

 in the Rose-coloured Starling {Pastor roseus), the Common 



^••^ 



EJECTED LINIXG-MEMBRAXES OF THE GIZZARD OF CURLEWS. 



Starhng (Sturnus vulgaris), the Mistle-Thrush {Turdus 

 viscivorus), the Little Owl (Athene yioctua), the Cuckoo 

 (Cuculus canorus), and especially in the Hornbill {Buceros). 

 An account of the casting up of the cuticle of the 

 gizzard by the Hornbill (Buceros) is given by Bartlett 

 (Proc. Zool. Soc. 18(59, p. 142) : also by Professor Flower 

 (ib., p. 150). Mr. Bartlett was given the recently ejected 

 lining-membrane of the gizzard of the Hornbill by a 

 keeper in the Zoological Gardens ; it was examined by 

 Professor Flower, who stated that it consisted of the 

 entire epithelial lining of the gizzard, and the specimen 

 is now in the Museum of the Royal College of Surgeons. 

 At a meeting of the Zoological Society on May 29th, 1874, 

 Dr. James Murie read a paper on this specimen and showed 

 illustrations of what he termed the " gizzard-sacs " of 

 the Subcylindrical Hornbill {Buceros suhcylindricus). 



