Macgillivray, Esq.; the late Commander J. M. R. Ince, R.N.; to His Excellency Sir George Grey, formerly Governor of South Australia, and now of New Zealand ; the late John Gilbert; Professor M'Coy, of Melbourne; George French Angas, of Angaston, South Australia; W. Ogilby, Esq., formerly Secretary of the Zoological Society of London; Dr. Sclater, its present Secretary; R. F. Tomes, Esq.; M. Jules Verreaux, of Paris; Dr. W. Peters, of the Royal Museum of Berlin; and lastly, my son, Mr. Charles Gould, the Geological Surveyor of Tasmania. I believe I have here enumerated the names of all who have favoured me with specimens or with the benefit of their opinions, in reference to the subjects of the present work. To have omitted the name of one friend would be a source of much vexation to me; but if such should unfortunately have been done, I trust it will be considered the result of inadvertence, and not of intentional neglect.
To my artist, Mr. Richter, I consider (and I have no doubt my readers will concur in my opinion) that much credit is due for the manner in which he has executed the drawings, both from the dead as well as from the living examples from which they were taken. Of my secretary, Mr. Prince, I have also to speak as having discharged the same praiseworthy services as heretofore.
It will be observed that, in mentioning the localities frequented by the various species, I have mostly used the term Van Diemen's Land for the large island lying off the south coast of Australia; there is
