1 56 The Field Naturalisfs Quarterly May 



" throwing back " is not due to the bitch having been infected by a 

 previous mate, whatever else the fact may be due to. The theory of 

 Telegony was advanced to account for the fact observed, and made to 

 fit the facts Hke many other theories. Probably the " throw back " is 

 due to an unknown and generally untraceable ancestor. Read the 

 article carefully again. — Ed. 



Young Naturalist's Quarterly Competition. 



In order to encourage the study of natural history and other scientific 

 subjects, the Editor offers prizes every quarter for the best essays sent 

 to him on the prescribed subjects. The competitions are open to all 

 young students and scholars, and are specially intended for the pupils 

 of public schools, colleges, &c., which have natural history and other 

 societies for their scholars. Competitors must send their essays in their 

 own handwriting, together with a statement from their head-master or 

 clergyman certifying the essay to be the original and unaided work of a 

 competitor under nineteen years of age. Essays should not exceed 1000 

 words, but may be as short as desired. In awarding the prizes, the 

 Editor, whose decision is final, will take into account both the accuracy 

 of the matter and its arrangement. The result of the competitions will 

 be announced in the following quarter's issue. The successful com- 

 petitor must then select his or her prize from those offered, and inform 

 the Editor at once where the prize is to be sent to. 



The Editor reserves the right to publish any of the essays sent in. 



Note. — The subject of the second competition is, " Oup Spring Bird 

 Visitors : Where they come from, and why do they come?" 



Competing essays (with statement of age and originality) must reach 

 the Editor of the 'Field Naturalist's Quarterly,' 17 Hartington Place, 

 Edinburgh, on or before 20th July 1902. Envelopes to be marked 

 " Competition Essay." The prizes will be announced in the next issue 

 of this journal. First prize, any three of following books. Other prizes 

 may be given. 



Types of British Animals (Aflalo). 



British Vertebrates (Aflalo). 



A Walk through Zoological Gardens (Aflalo). 



A Year with Nature (Westell). 



Fauna of Shropshire (Forrest). 



British Serpents (Leighton). 



The Country Month by Month (Owen and Boulger). 



Norfolk Broads and Rivers (Davies). 



Design in Nature's Story (Kidd). 



One Thousand Objects for the Microscope (Cooke). 



Animal Coloration (Beddard). 



To-day with Nature (Robinson). 



The Vivarium (Bateman). 



&c., &c., &c. 



