BOTANICAL INFORMATION. 639 
same subject published by me, in the Annals and Magazine 
of Natural History. "These papers bear dates as follows :— 
Ist October, 1841, Ist April, 1842, and Let October, 1842; 
the latter paper having been placed in Mr. Taylor's care, as 
noticed by him at its conclusion, more than a year prior to 
its publication. It was also directly referred to as forth- 
coming in the article on Pollen published October 1st, 1841, 
and again mentioned by the Editor of the Annals about June 
or July, 1842. 
It is much to be regretted that Mr. Aldridge was not ac- 
quainted, which I presume to have been the case, with these 
communications, at the time of the publication of his own 
articies. 
I also beg to take this opportunity of referring Mr. Wilson 
to some observations made by me on the Hairs of the Cam- 
panulacez, &c., in the Annals of Natural History for October, 
1841; of the existence of which, I conclude from a pe- 
Tusal of the interesting remarks contained in the last 
number of the Journal of Botany, that your correspondent 
1S ignorant. 
Mr. Wilson and myself are both agreed in the important 
fact, that the stigmatic function of the Campanulas ought not 
to be restricted to the internal surfaces of the three divergent 
_ Tays, which are usually regarded as constituting the true 
stigmata, and herein we are both at issue with Adolphe 
Brongniart; but Mr. W. and myself differ in our accounts of 
the manner in which the pollen-tubes penetrate into the 
style, Mr. Wilson asserting that they enter by an aperture at 
the summit of the hairs, while I conceive that they penetrate 
the tissue of the style between the hairs. 
Begging that you will do me the favour of inserting this 
note in the next number of the Journal of Botany, for the 
information of your correspondents, and of those who may 
be interested in the subjects to which it refers, 
I remain, my dear Sir, 
Yours very faithfully, 
October 5th, 1842. AnTHUR Hitt HassALL. 
VOL. I. 3.B 
