"THE CUCKOO'S SECRET." 



BY 



EDGAR CHANCE. 



A detailed account of Mr. Chance's intensive stud}^ of the 

 Cuckoo Problem during the seasons 191S-1921 in relation to 

 the laying-habits of the Meadow-Pipit Cuckoo, illustrated 

 with selections from the Film and otlier photographs. The 

 book also contains a statement of various other aspects of the 

 problem and incidentally suggests a number of kindred in- 

 vestigations awaiting the attention of British ornithologists. 



Small Demy 8vo, cloth, 7s. 6d. net. 



TO BE OBTAINED OF ALL BOOKSELLERS. 



Ilhtstrated prospectus gratis on appliccttion. 



SIDGWICK AND JACKSON, LTD., 

 3 Adam Street, London, W.C. 2. 



Vol. II. (the completion) now ready. £2 2s. 

 THE BIRDS OF BRITISH GUIANA. Based 



on the Collection of F. Y. McCoxxp:ll. By Charles Chubb. 

 2 vols., roy. 8vo, ])p. liv, 528, xcvi, 61.5, with portrait, coloured 

 map, 24 views and plates illustrating tlie Itinerary, and 20 coloured 

 plates by H. dronvold ; wrappers. £4 4s. 



Tl>e edition comprises 2o0 niimhered copies. 



BERNARD QUARITCH, LTD., 

 11 Grafton Street, New Bond Street, London, W. 1. 



THE NEW ILLUSTRATED MAGAZINE 01' MATUKAL HISTORY. 



The Magazine you have been waiting for. 



The Magazine in which you can record your own observations. 



NATURELAND offers;— 



Interesting articles by well-known writers. 



Natural History photographs of all kinds. 



A " Notes " column to which all may contribute. 



Furtlier 'particulars of the Editor — 



GRAHAM RENSHAW, M.D., F.R.S.E., Bridge House, Sale. Manchester. 



