XXi1V INTRODUCTION. 
doubtful points concerning the synonymy and nomenclature 
of the Mammalia. Professor W. Boyd Dawkins, F.R.S., 
and Mr. E. T. Newton have also read the proofs of the 
Mammalian section, and pointed out many emendations 
resulting from their own special researches ; while Mr. Alfred 
Bell has contributed a series of notes and references, from 
which a few important omissions have been supplied. 
For much information concerning type specimens and 
old collections the writers are indebted to the Rev. George 
Gordon, LL.D., of Birnie, Mr. James Powrie, of Reswallie, 
Mr: Edward Wilson, of Bristol, Mr. H. M. Platnauer, of 
York, Mr. W. Rupert Jones, of the Geological Society, and 
many others ; and thanks are especially due to Mr. B. B. 
Woodward, of the Natural History Library of the British 
Museum, as also to Mr. J. Saunders, for much valuable help 
in bibliographical researches. Finally, the writers would 
tender their acknowledgments to Mr. F. Justen, of Messrs. 
Dulau & Co.,to whose kindly interest is due the publication 
of the work in its present form. 
LONDON, 
December 31st, 1889. 
