Sir W. Jardine on the Birds of Madeira. 245 
- 13. Procellaria Bulwerii, Bulwer’s Petrel.— Received from 
Mr. Bulwer, figured in “ Illustrations of Ornithology” by myself 
and Mr. Selby, and there described as a new species. We have 
still been unable to find any thing with which it agrees, and it may 
at once be distinguished from those described, by the elongation of 
the two centre tail feathers. 
14, Procellaria Leachi, Leach’s Petrel—One specimen sent by 
Mr. Bulwer, in very good preservation,’ and afforded all the charac- 
ters of the species. 
Note. Dr. Heineken, in a short paper on the birds of Madeira, mentions the © 
Procellaria Bulwerii as closely allied to a species described by him, but 
to which it certainly cannot be referred. lis species has the tail forked, 
P. Bulwerii has it elongated in the centre. Neither can it belong to the 
smaller fork-tailed species, being entirely of a uniform black, and I can 
find none bearing according characters: it must therefore stand as new, 
and wiil be the Procellavria Anjinho, HEINEKEN. 
ART. II. Account of the Series of Islands usually denominated 
the Outer Hebrides. By Wiuitiam Maceruuivreay, A.M. &c. 
Section I.—Introductory Sketch of the Outer Hebrides. 
PERHAPS no extensive portion of Great Britain has less attract- 
ed the attention of the more civilized and densely populated parts 
of that country than the Outer Hebrides, which few travellers have 
visited, and respecting which the only information of importance 
that we possess, is to be found in Sir John Sinclair’s Statistical 
Account of Scotland, Dr. Walker’s Economical History of the 
Hebrides, M‘Donald’s Agricultural Survey, and the writings of 
Dr. M‘Culloch. Yet these islands, constituting a range having a 
longitudinal extent of 130 miles, varying in breadth from 15 miles 
to a few yards, separated only by narrow channels, and presenting 
a great similarity in geolegical structure, soil, and productions, are 
peculiarly interesting in many important points of view. They 
form the abode of a race of people, among whom the purest ves- 
tiges of ancient Celtic manners and customs still linger,—they con- 
stitute a district of themselves completely separated from all others, 
—amid all their sterility and gloom, they afford facilities for the 
establishment of fisheries and manufactories not possessed in a 
greater degree by any other portion of the kingdom ; and to the 
naturalist they present a field of observation, hitherto less explored 
than many of the islands of the Indian Archipelago or Southern 
Ocean. 
The Inner Hebrides, which are daily becoming more known to 
the public, lie along the western shores of the northern and middle 
divisions of Scotland, like so many disjected fragments of the main- 
land, or like portions of some primeval continent, isolated by the 
