PREFACE. Vil 
indebted, and would here beg to express my thanks to its officers for the many attentions I 
have received from them. From most of the public Museums of the Continent I have 
received much assistance. To M.Temminck, Director of the Royal Museum at Leyden, so 
well known for his valuable works on Natural History, I beg to offer my most grateful 
acknowledgments for the assistance he has afforded me, without which my work would neces- 
sarily have been long delayed, and in fact could never have been brought to that complete state 
in which Jam happy to say it now’ stands: sogreat indeed has been the liberality of this 
eminent /naturalist, that he has even confided new species to my care, and allowed me to Goa 
and describe them in my work: before including them in his own; and_his liberality will, I 
déubt not, be duly appreciated by the scientific public. ..In Professor Lichtenstein of Berlin 
I have met with another kind and liberal friend, to whom Iam indebted: for the use of several 
of the rarer European Birds, among which were some \of the original specimens. collected 
by the celebrated Pallas. ‘To M. Schreibers‘and.-MM. Natterer of Vienna I am also under 
great obligations, as well as to the gentlemen connected with the collections of Paris and 
Frankfort, who readily afforded me every assistance I required. To the collection of the 
Baron Feldegg of Frankfort I have had free access, and to this gentleman I am indebted for the 
use of many rarities, and of some species entirely new to science. To William Yarrell, Esq., 
I shall ever feel deeply grateful, for the judicious and kind assistance which he has at all times 
rendered me, and for the use of many valuable specimens from his excellent collection. My 
ever lamented friend, E. T. Bennett, Esq., was at all times much interested in my publications ; 
I am therefore proud to add my grateful testimony to his varied talents and kind and amiable 
conduct upon every occasion; and of the numerous individuals honoured by his friendship 
there is none who more sincerely deplores his untimely decease than myself. To the Earl of 
Derby, the Honourable W. T. T. Fiennes, Sir William Jardine, Bart., N. A. Vigors, Esq., W. 
H. Rudston Read, Esq., T. B. L. Baker, Esq., J. J. Audubon, Esq., Captain S. E. Cook, A. 
Waterhouse, Esq., of Liverpool, Dr. De Jersey, E. H. Reynard, Esq., and to several other 
gentlemen my thanks are likewise due, for the warm interest which they have at all times 
taken in the present work. Neither must the valuable assistance afforded me by Mr. Martin 
of the Zoological Society be forgotten. In conclusion I would beg leave to return my grateful 
thanks to the whole of the Subscribers for the support with which they have been pleased to 
favour me. 
