PROCEEDINGS 



OF THE 



HORTICULTUR.\L SOCIETY OF LONDON^ 



1842. 



No. XVIII. 



March 15, 1842. 

 ORDINARY MEETING. 



The folIo\\-ing gentleman was elected a FeUow of the Society : 



Charles Sedgefield Crowley, Esq , of Broad Green Lodge, 

 Croydon. 



A report from Mr. Fortune, Superintendent of the Hothouse 

 Department in the Society's Garden, on Experiments upon the 

 effects of Kyanized Wood and Mercurial \'apour upon Plants, 

 was read. 



Two boxes constructed upon the principle of Mr. Ward's cases, 

 the one made of wood steeped in Kyan's tanks, the other of com- 

 mon wood, were filled with the same kind of soil and plants. 

 After six months, the plants treated in this manner did not suc- 

 ceed well in either box, but those in the Kyanized one did quite 

 as well as those in the other. It should be stated, however, 

 that both boxes were painted. 



In June, some Kyanized wood was put amongst the stems 

 and leaves of Calandrinia discolor, and a common Pelargonium, 

 and then covered \^ith hand-glasses. At the same time hand- 

 glasses were put over an equal number of plants of the same 

 description which srrew side by side with the others. After 



