PREFACE. xili 
I have equally resisted the wholesale manufacture of new 
specific names by the revival of obsolete or forgotten genera 
without any obvious necessity. Nomenclature is a mere 
means to an end; it is ignominious to become its slave, and 
we alienate the sympathy of the public, which we wish to 
secure, by changes of familiar names which, to its eyes, must 
seem simply wanton. 
The expenses of preparation and publication of the present 
section of Volume IV. have been aided by grants from the 
Governments of Cape Colony and Natal. The Government of 
the Transvaal has not hitherto been associated with the work. 
It is a gratifying evidence of the appreciation of its usefulness 
in South Africa that that Government: has now spontaneously 
also made a grant in aid of its publication. 
WT. E-D. 
Witcomse, 1909. 
