PREFACE. 
IV. 
Surgeons, for permission to figure specimens in that collection, and for free access to 
the whole of the same. To Dr. Gunther, M.A., F.R.S., Keeper of the Zoological 
Department of the British Museum, for free access to the osteological collection of 
that institution. To Mr. William Davies, F.G.S., of the British Museum, for much 
valuable information regarding the Siwalik Carnivora in the National Collection. 
To Prof. V. Ball, M.A., F.R.S., Director, and Mr. A. G. More, Curator of the 
Science and Art Museum, Dublin, for the opportunity of examining the Siwalik 
Carnivora in that collection. To Dr. J. E. Taylor, Ph.D., Curator of the Ipswich 
Museum, for permission to figure an important specimen in that collection. To 
Prof. George Busk, M.D., F.R.S., for the opportunity of figuring a specimen lately 
in his possession, and now presented to the British Museum. To the Publishing 
Committee of the Zoological Society, to the Council of the Geological Society, and 
to the Chief Librarian of the British Museum, for permission to reproduce woodcuts 
from their publications. My thanks are also due to numerous palaeontologists for 
copies of their memoirs on fossil mammals ; and to the Editorial Staff of the 
“ Geological Record,” for the opportunity of seeing the manuscript of several of the 
forthcoming volumes. 
In answer to several inquiries why the English, in place of the decimal, system 
of mensuration has been adopted, I may state that this course has been followed in 
order to bring this work into harmony with the “ Fauna Antiqua Sivalensis.” 
I cannot conclude without expressing my sense of the high value for palaeonto- 
logical purposes of the two following memoirs ; viz., one by Prof. Busk, 11 On the 
Cranial and Dental Characters of the existing species of Hyaena”; and the other by 
Prof. Huxley “ On the Cranial and Dental Characters of the Canidae.” It is to be 
hoped that other families may be treated in the same manner. 
It should be observed that in the earlier parts the names of the founders of 
species are universally enclosed in brackets : in the latter parts they are only so 
enclosed when the generic name has been changed. 
RICHARD LYDEKKER. 
The Lodge, 
Harpenden, 
Hertfordshire, 
