ORNITHOLOGY OF SECTION D, 1850. 
Before enumerating the results of Mr. M‘Gillivray’s labours, I 
must not fail to direct your attention to the zeal with which he has 
worked in the cause to which he has devoted himself, to the very 
admirable manner in which his specimens are prepared, the neatness 
and accuracy with which they are labelled and their sex ascer- 
tained by dissection, the place where and the date when killed, and 
the many valuable notes he has made of their habits; nor must 1 
omit to mention the kind and friendly assistance constantly rendered 
him by Captain Stanley, of which, it will be seen, he has himself 
made honourable mention —the result showing how important it is 
that officers employed in exploring expeditions should have a taste 
for natural history, as well as the kind of knowledge requisite for 
duly effecting the more immediate object of the voyage. 
T shall now give such portions of the interesting letters with 
which Mr. M‘Gillivray has favoured me, as have reference to those 
departments of natural history to which I have devoted myself, 
with such comments as may be necessary, together with sucis por- 
tions of his personal adventures as may appear to be of general 
interest, 
’ « AL M.S. Rattlesnake, Mauritius, 12th May, 1847. 
Pita am sending home my first box of specimens, I accompany 
tote Hd a short note, to direct your attention to one which I take 
cid alassidroma leachii ; a Pufinus which I have set down as 
V species, closely allied to your favirhynchus, and a Sterna. 
wide derived the greatest benefit from your paper on the Pro- 
ig which has enabled me to identify the species. The 
‘n mumbered 25 I have called glacialoides by guess, there 
bei ae, 
Ng no description to which I have access.” 
cel 
pate the Thalassidroma leachii, no specimen was observed 
only aia my yoyage round the world, and the above is the 
tropics ; ao T have heard of of its being seen so far south as the 
tans fe fs uffinus is the Pufinus cinereus of the European 
sont a * “ above is the first instance recorded of its being seen 
the Binds § ak the Sterna is the S. melanorhyncha, figured in 
the bing ustralia. Mr. M‘Gillivray was right in considering 
numbered 25 ag P. glacialoides. 
93 
