xxiv 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 3 1 st, 1889. 



