638 BOTANICAL INFORMATION. 
the high southern latitudes. Dr. Pickering, it is believed, 
will soon make a full report of the nature and extent of the 
discoveries; and these, together with the plants collected by 
the British Antarctic Scientific Voyage, under Captain James 
C. Ross,ought to render our knowledge of Antarctic Botany 
very nearly complete. 
American Mosses. 
The sets of DRuMMOoND's AMERICAN Mosses, announced 
at p. 302 of the 3rd volume of the Botanical Journal, having 
been entirely disposed of, Mr. W. Wilson has, with his 
accustomed accuracy, from the rich stores of Mr. Drum- 
mond's general Collection, prepared several more sets of 
equally good specimens with the former, and running from 
170 to 145 each, which are now offered to purchasers at the 
same rate as the former Fasciculi; viz., £2 the 100 species. 
Some alteration, too, has been adopted in the mode of packing 
them, such as folding the sides of the containing pages, so 
as to make the whole fasciculus flat, or equally thick in every 
part. Also, some loose specimens have been put into 
chartule, in certain cases, as a Supplement to those which 
have been fastened down with glue, thus increasing the 
quantity for the purchaser, where the stock is ample enough 
to afford it. Sets may be had by applying to W. Wilson, 
Esq. Orford Mount, Warrington, or to the Editor of this 
ournal. 
To Sir William Hooker. 
Note from Mr. Hassauu in reference to Mn. ALDRIDGE’S 
Papers on the Pollen Granule, and Mn. Witson’s on the 
Stigmatic Hairs of the Campanulacee. 
Dear Sir,—I have lately perused, in the Journal of Botany, 
two papers by Mr. Aldridge of Dublin, upon the uses of the 
Pollen Granule in reference to Classification, from which I 
should judge, as my writings are not alluded to, that, that 
gentleman is unacquainted with the series of papers on the 
