Mr. Edward Arnold's Spring Announcements, 3 



POULTRY HUSBANDRY. 



By EDWARD BROWN, F.L.S., 



Late Hon. Sec. National Poultry Organisation Society ; President International 



Association of Poultry Instructors and Investigators. 



Author of " Races of Domestic Poultry," " Poultry Fattening," etc. 



Fully Illustrated. Demy 8vo. 8s. 6d. net. 



In no department of Animal Husbandry have greater changes 

 taken place during the last two decades than the breeding of 

 fowls and the production of eggs and poultry. Conditions and 

 methods have completely altered. Systems formerly adopted 

 have been abandoned or revolutionized, in many cases giving 

 place to those which were previously unknown. 



For the past year the author has been engaged upon an entirely 

 new work, in which has been brought into one focus from his 

 former works what is applicable to modern conditions, together 

 with the result of practical experience, and research work of later 

 years, dealing with the entire problem — productive, technical, and 

 commercial. In it will be found a vast amount of new material, 

 and special attention has been given to future developments, 

 whether on extensive or intensive lines. 



THE MAGNETIC COMPASS IN 

 AIRCRAFT. 



By Captain F. CREAGH OSBORNE, R.N., 



Superintendent of Compasses, Admiralty. 



Post Svo. With Transparent Protractor. Cloth. 2s. 6d. net. 



This little volume will be found indispensable by aviators, 

 whose work has often been seriously handicapped for want of the 

 information contained in it. The author's position as Director of 

 Compasses at the Admiralty is a sufficient guarantee that the 

 contents are eminently practical and lucid. A useful feature of 

 the work is the inclusion, in a pocket, of a transparent circular 

 protractor. 



SCHOOL HYGIENE. 



By Dr. W. B. DRUMMOND, 



Author of " An Introduction to Child Study," etc. 



Cloth. 3S. 6d. 

 " Education is the guidance of growth. Everything which 

 interferes with a child's growth interferes Avith the work of the 

 teacher, and is, therefore, his concern." These words represent 

 the point of view from which this book is written. Its special 

 aim is to show how much enlightened teachers may do to promote 

 their pupils' health both in and out of school. Common diseases 

 and disorders are described with the object of explaining what can 

 be done to avert the dangers which school life commonly entails. 



