LARIDM. 89 



those from the Northern. I observed no difference in the colouring of the sexes, which 

 may be thus described: — All the upper surface blackish-brown; the feathers of the back 

 with whitish shafts and tips; all the under surface chocolate-brown; base and shafts of 

 the primaries white." Mr. Howard Saunders says: — "From Campbell's Island, in 54" S., 

 168° E., up to Norfolk Island, the Crozets, and up to the Cape of Good Hope, where Layard 

 observed it in April, the specimens all agree in their remarkable uniformity of sooty-brown 

 plumage, there being few, if any, striations even upon the feathers of the neck ; whilst the size 

 of some of the examples is enormous, the primaries measuring sixteen and seventeen inches 

 from carpal joint to tips of primaries." 



With this I close my Ocean-Bird notes, trusting they may prove of some small use 

 to passengers, and especially to those on the great Australian route. This voyage, whether 

 undertaken on one of the magnificent modern steamers, or on the slower but perhaps 

 more peaceful sailing-ship, is of considerable duration; and it becomes a matter of some 

 importance how to spend the time to the best advantage. I have therefore written this 

 book in the hope of affording some additional pleasure to those on board, by endeavouring 

 to interest them in the study of their numerous bird-companions. 



In conclusion, I take this opportunity of tendering my warmest thanks to Mr. Osbert 

 Salvin for so kindly allowing me to benefit by his great experience and knowledge, and also to 

 Miss F. E. Green for her beautiful illustrations. I would also wish to acknowledge the very 

 full use I have made of Mr. Howard Saunders' exhaustive articles on the Terns, Gulls, and 

 Skuas. 



