F. O.K 



80 



75 



70 



65 



60 



55 



50 



45 



30 



PREFACE. 



Fahrenheit, Celsius, and Reau- 



23 nmr, is introduced for com- 



22 parison. 



2 1 My various sources of infor- 



20 mation, and the friendly as- 



19 sistance I have received on all 



is hands during the progress of 



I? our work, are acknowledged, so 



16 far as possible, in the text. 



15 I need here only renew my 



!4 thanks to Staff- Commander 



13 May and the officers of the 



12 'Lightning,' and Captain Cal- 



n ver and the officers of the 



10 e Porcupine/ without whose 



9 hearty sympathy and co-ope- 



s ration our task could never 



7 have been satisfactorily accom- 



6 plished ; to my colleagues, Dr. 



5 Carpenter, E.U.S., and Mr. 



4 Gwyn Jeffreys, F.R.S., who 



3 have cordially assisted me in 



2 every way in their power ; and 



i to the naturalists into whose 



hands the animals of various 



1 VJ 



_i classes were placed for descrip- 



_ 2 tion and study, the Eev. A. 



_3 Merle Norman, Professor Kol- 

 B _liker, Dr. Carter, F.B.S., Dr. 

 Professor Martin Duncan, E.R.S., 



