208 Recently published, Ornithological Works. 
a more concise account of the birds observed on the coast 
of co. Dublin. Among the shorter, but by no means less 
important notices, Mr. K« Warren supplies some interesting 
information respecting the spring-migration of Motacilla 
alba along Killala Bay, in the west; and Mr. It. J. Ussher 
describes a large colony of Cormorants (Phalacrocorax carbo) 
breeding on trees on an island in a lonely lake in the Mayo 
mountains, upwards of eighty nests having been counted. 
Among the especial rarities for Ireland, occurrences of the 
Bose-coloured Pastor, Golden Oriole, Night-Heron, Wood- 
Sandpiper, and Montagu’s Harrier may be mentioned, and 
these records indicate an increased interest in the avifauna 
of the island. 
19. Jackson’s ‘ Thousand Days in the Arctic .’ 
[A Thousand Days in the Arctic. By Frederick G. Jackson. Two 
vols. London and New York : Harper Brothers, 1899.] 
The two volumes of Mr. Jackson’s journals, as given in 
the history of his thousand days in Franz-Josef Land, con¬ 
tain numerous references to birds, especially to those which 
appear to have furnished a considerable portion of the sub¬ 
sistence of the hardy explorers during their stay. Mr. W. 
Eagle Clarke’s memoir in this Journal (‘ Ibis,’ 1898, p. 249) 
has already placed the main results of the Harmsworth- 
Jackson Expedition as regards ornithology before the world; 
but some additional information will be found in the 
Appendix to the present work, contained in Mr. Jackson’s 
own field-notes on the birds met with during the stay in 
Franz Josef Land, and in an article on the eggs collected, 
prepared by Mr. F. W. Frohawk. 
20. Kempen on some Birds of Hybrid Origin or Abnormal 
Plumage . 
[Notes sur quelques Oiseaux Hebrides on a Plumage Anormal. Par 
Oh', van Kempen. ‘ Omis,’ ix. p. 251.] 
Mr. Ch. v. Kempen describes some recently-acquired 
specimens of hybrids and abnormal plumages from his own 
collection—such as Anas boschas x Mergus merganser $; 
