PREFACE TO THE SECOND EDITION. 



this work will be found all the Propositions which 

 appear in treatises on Theoretical Statics. To the 

 different Chapters Examples are appended, which have 

 been principally selected from the University and College 

 Examination Papers; these will furnish ample exercise 

 in the application of the principles of the subject. 



Some of the Examples in the earlier Chapters assume 



results which are obtained at a later part of the book ; the 



lent who has no previous acquaintance with the subject 



may therefore, on his first perusal of the book, omit the 



litVuult Examples of the first six Chapters. 



first three Chapters and in .:h Chapter 



I have made considerable use of Mr Pratt's Treatise on 

 .mii-al Piili. 'j'iiv, which was placed at my diipossl 

 by the Publishers. 



In the second the work has been thoroughly 



sed and has received large additions; these additions 



re been made with the view of rendering the subject 



more readily ible by explaining and illustrating those 



parts which were found by the experience of teachers to be 



difficult for beginners. 



1 



'OUT'S COLLEGIA 

 8, 1858. 



In the third edition many additions have been made 

 to illu application of the principles of the 



t to the .solution of problems. 



April, 1866. 



