Vol. xxxvi.] 28 



clearly demonsti'able hy the study of eggs : the union of the 

 Charadriidse and Scolopacidse, the separation of the Lariidse 

 and Procellariidse, and so forth. 



In explanation of the anomaly of Montifringilla, Cincbis, 

 and Podoces laying white eggs, Mr. Jourdain called attention 

 to an exhibit kindly prepared for the purpose by Mr. P. F. 

 Bunyard, showing that many Passeres which normally laid 

 coloured eggs occasionally produced white eggs or eggs with 

 a white ground. If advantageous to the species when 

 breeding in covered sites, these eggs would be perpetuated 

 by Natural Selection. 



Replying to Mr. Stuart Baker, Mr. Jourdain said that all 

 his arguments and examples were drawn from a single order, 

 the most highly developed one, in which colour variation 

 might almost be said to be normal^ and left untouched the 

 important fact of the comparative fixity of type in the older 

 and less highly developed orders. 



The next Meeting of the Club will be held on Wednes- 

 day, the 8th of December, 1915, at PAGANI'S EESTAUEANT, 

 42-48 Great Portland Street, W. ; the Dinner at 6.45 p.m. 

 Members of the Club intending to dine are requested to 

 inform Dr. P. E. Lowe, at 27 Ormonde Gate, Chelsea, S.W. 



[N.B. — Members who intend to make any communication 

 at the next Meeting of the Club are requested to 

 give notice beforehand to the Editor at 34 ElsM'orthy 

 Road, South Hampstead,! N.W., and to place in his 

 hands not later than at the meeting, MSS. for publica- 

 tion in the Bulletin.] 



(Signed) 



KoTHSCHiLDi, D. Seth-Smith, Percy R. Lowe, 



Chairman. Editor. Sec. 4' Treas. 



