Comets. 217 



A new monthly work, in elucidation of that very beautiful 

 ^od interesting department of science, the Natural History of 

 the Nests and Eggs of British Birds. The descriptions, which 

 are calculated for the naturalist as well as general observer, 

 are intended to comprehend every useful trait of information 

 respecting the nidification, eggs, and incubation of the nu- 

 merous species of the feathered tribes that inhabit the British 

 Isles; and are throughout accompanied by a series of ele- 

 gantly-coloured plates, comprehending figures of the eggs of 

 evei-y species, with their most singular varieties, so far as they 

 can be correctly ascertained. The whole exclusively executed 

 from nature, and disposed according to their respective genera, 

 by E. Donovan, F.L.S. W.S. &c. author of the Natural Hi- 

 story of British Birds, in ten volumes, and other approved 

 works. 



The amount of the plates included in each monthly part, 

 and also the number of the subjects comprised in each plate, 

 will vary from three to four or five, according to the extent of 

 the species appertaining to each genus respectively ; every 

 genus being purposely separated from the rest, in order that 

 the whole, when completed, may be distributed into systematic 

 order without difiiculty. The descriptions will be also com- 

 prised in the same manner into distinct genera ; and an index 

 of the whole will be given at the conclusion, for the purpose 

 of a general arrangement. 



The subjects will be selected with every attention to that 

 degree of variety which is expected in a periodical production, 

 without being chosen too promiscuously. One plate will be 

 constantly devoted to the representation of subjects which 

 are of more than usual rarity ; another to that class of the 

 feathered tribes which are commonly denominated " birds of 

 sport;" and a third to the warblers and other inhabitants of 

 our groves. The indigenous species of our sea coasts, those 

 of our desert heaths and plains, and of our Alpine regions, 

 will appear occasionally, as well as those which are only acci' 

 dental visitors in tlje British Isles, 



ti Ji liiXXXII. Jtdelligence and Miscellaneous Articles, 

 bajiitni j; /!, COMETS. 



'^jii^fiCl'Jess than/o«;- or /u^ comets have been discovered in the 

 ^ course of the present year, and have engaged the atten- 

 tion of foreign astronomers. 



; Theirs/ was discovered by M. Gambart, at Marseilles, on 



{he 19th of May, between the constellations Cassiopea and An- 



Vol. 66. No. 329. Sept. 1825. E e dromedd. 



