PKEFACE. 



This volume completes Mr. Kirby's arduous work in compiling 

 a Catalogue o£ the Ortlioptera. Its preparation has occupied 

 a considerable part ot' the last three years, but has been 

 frequently interrupted by the numerous other duties the author 

 has been called on to perform. A glance at the synonymy 

 and at the multitude of references will be enough to show how 

 great has been the labour involved in the preparation of the 

 Catalogue. 



SIDNEY F. HARMER, 



Keeper of Zoolo(jj/. 



British Museum (Natural History), 

 London, S.W. 



March 3rd, 1910. 



