liv 
EOTAL HOETICULTUEAL SOCIETY. 
in the same way, and that consequently the theory of frost or 
heat will not hold good. It is certain, however, that many cases 
of gumming do arise from climatic causes, as has been proved by 
A. Knight. Different causes in vegetable diseases produce very 
similar effects ; and the disease may be so far deemed constitutional 
that the variety in question is peculiarly subject to the malady. 
Mr. Alfred Smee brought Lemons materially injured by a 
coccus. The parts affected remain green, and neither absorb 
salt nor sugar. The only use to which they can be put is for the 
preparation of lemon-juice or citric acid. 
Col. Le Couteur sent Navel-oranges from Bahia, in which the 
ovules, which were only rudimentary, were confined to a little 
cavity in the eye of the fruit. It was remarked that they confirm 
DeCandoUe's views as to the structure of the fruit. 
The Chairman brought specimens of diseased Oats, which the 
Secretary undertook to examine more minutely before the next 
Meeting. 
The Meeting then adjourned. 
GENEEAL MEETING. 
G. F. Wilson, Esq., E.E.S., in the Chair. 
Mr. Berkeley commented upon several of the vegetable curio- 
sities which had been exhibited by Mr. Eobinson, amongst which 
was a long deep-eyed potato, which is a favourite variety with 
the Mormons ; he stated that the Easter Beurre Pears sent 
to the Emit Committee were the produce of an extremely 
prolific tree which was brought by himself from the garden 
of M. Desmazieres, at Lambersart, as a graft, in 1838. As 
regards a specimen of SoncJms platylepis, sent by Mr. Saunders, 
he remarked that there are many shrubby species in Madeira and 
the Canary Isles which are well worthy of reintroduction, which 
may be easily effected by seeds. In noticing the fine group of 
Aucubas sent by Mr. Turner, he stated that the reason why so 
many persons were disappointed about raising Aucubas from seed 
was that they had not patience enough to wait for their germina- 
tion, and that they should not be too deeply covered with soil. 
The garden-tools from Salt Lake City were noticed, especially 
the prong-hoe for deeply loosening the soil between lines of 
plants. 
