230 Address of Prof. DeCandolle 
As to the development of the stem I think it quite certait 
that it grows out from the posterior end of the body. The best 
proof of this is that I have frequently found a monad—espe- 
cially in the condition of the one which I described above as 
breaking loose from its companion—nearly sessile upon a clean 
spot, and attached by a very short, faint, film-like thread. From 
this size upward I had no difficulty in finding abundant examples 
as gradually increasing in diameter as they did in length; thus 
furnishing a pretty strong evidence that the stem grows under 
the influence of its own innate powers, and is not therefore a de- 
posit emanating from the body of the monad, except, perbaps, 
as it may be nourished py a fluid circulating within its 
hollow core. 
Cambridge, Mass., May 21, 1866. 
. 
eal Congress in London 
ART. re Ea ale of Prof. DeCandolle to the recent Botani- 
i 
vations will be to call to mind how they aid each other, and to 
first meeting of the Botanical Congress was held in the Raphael Room of 
the South Kensington Museum on Wednesday, May 23, at 11 A. M., Prof. DeCan- 
dolle in the chair, 4 A very large meeting, including almost all the British reste - 
Prssid \dre hs : ent i assembled to 
a ts Negba ters: present in London were 
phe oe ee 
