Map Projections. By Arthur R. Hinks, M.A., Chief 

 Assistant, Cambridge Obsei'vatory, and University 

 Lecturer in Surveying and Cartogi'aphy. 



Demy 8vo. pp. xii + 126. With a frontispiece and 19 figures. Price 5^-. net. 



Extract from the Preface 



In writing a book on Map Projections, the usual course has 

 been to present the general mathematical theory first, and to 

 discuss the practical questions invoK^ed at a later stage. The 

 result is that the geographer sometimes finds himself unable 

 to follow the bearing of the mathematics, and arrives at the 

 consideration of the practical side of the subject in a very 

 unformed state of mind. I propose to adopt the principle 

 of a very distinguished topographer, that in a book on Map 

 Projections intended for the mapmaker and the map user, 

 "one should draw the line at the root of minus one."... 



There are some thirty map projections of importance, of 

 which about half are in more or less general use. All of 

 them have certain valuable properties, and equally serious 

 defects. It is important to have a clear graphical or numerical 

 idea of the merits and defects of each ; to be able to decide 

 at once on its suitability for a given map ; or when one finds 

 it actually employed on a map, to recognise what a map so 

 constructed will do, and what it will not do. 



I shall try in this book to make clear the relations between 

 the various projections ; the extent to which they possess the 

 qualifications which a good map projection should possess; 

 the methods by which they can be constructed ; and the way 

 in which maps so constructed can be used. The last matter 

 is of considerable present importance. Relatively few people 

 have to make maps, but very many have to use them. 



Scotsman. — There are many people who, without being profound mathe- 

 maticians, have to make maps. There are more still who have to use 

 them, and it is the needs of these two classes that Mr .Arthur R. Hinks 

 has chiefly considered. ...As a thoroughly practical manual of its subject, 

 the book should be of great service to all who are concerned with the 

 making and use of maps. It is clear, compact, and well ordered. 



\^A special prospectus of this book will be fonvarded on application^ 



18 



