EDUCATIONAL BOOKS. 



exercise for the student. For the greater part of them, recourse has been 

 had to the Examination Papers set in the University and the several 

 Colleges during the last twentv years. 



Phear. ELEMENTARY HYDROSTATICS. With Numerous 

 Examples. By J. B. PHEAR, M.A., Fellow and late Assistant 

 Tutor of Clare College, Cambridge. Fourth Edition. Crown 

 8vo. cloth. 5J. 6d. 



This edition has been carefully revised throughout, and many new 

 illustrations and examples added, "which it is hoped will increase its 

 usefulness to students at the Universities and in Schools. In accordance 

 with suggestions from many engaged in tuition, answers to all the 

 Examples have been given at the end of the book. 



Pratt. A TREATISE ON ATTRACTIONS, LAPLACE'S 

 FUNCTIONS, AND THE FIGURE OF THE EARTH. 

 By JOHN H. PRATT, M.A., Archdeacon of Calcutta, Author of 

 " The Mathematical Principles of Mechanical Philosophy." Third 

 Edition. Crown 8vo. cloth. 6s. (>d. 



The author's chief design in this treatise is to give an answer to the 

 question, " Has the Earth acquired its present form from being originally 

 in a fluid state ? " This Edition is a complete revision of the former ones. 



Puckle. AN ELEMENTARY TREATISE ON CONIC SEC- 

 TIONS AND ALGEBRAIC GEOMETRY. With Numerous 

 Examples and Hints for their Solution ; especially designed for the 

 Use of Beginners. By G. H. PUCKLE, M.A., Head Master of 

 Windermere College. Third Edition, revised and enlarged. Crown 

 8vo. cloth, ^s. 6d. 



This work has been completely rewritten, and a large amount oj new 

 matter has been added to suit the requirements of the present time. The 

 author has written with special reference to those difficulties and mis- 

 apprehensions which are found most common to beginners. The treatise is 

 complete as far as regards Cartesian Co-ordinates. 



