BOTANICAL INFORMATION. 137 
crease in the number of the species showing plainly the very 
imperfect state in which this department of Botany has been 
allowed to remain, a condition from which it is hoped that 
it will be rescued by the present work, which the author 
flatters himself will place the knowledge of the fresh-water 
Alye upon a footing as satisfactory as that on which other 
and higher departments of the vegetable kingdom rest. The 
author earnestly solicits the correspondence of all such per- 
sons as may be engaged in the study of the Alge, and are 
anxious either to communicate or receive information respect- 
ing those that inhabit the fresh-water; and he requests that 
those who are favourably disposed to the work, and are 
desirous of subscribing to it, will make known their inten- 
tions to him at his residence, Addison-road North, Notting- 
hill, near London. 
Information respecting Botanical Travellers and Collectors. 
The Editor has much interesting information on this 
subject to communicate; but a press of other matter and of 
valuable papers communicated by distinguished Botanists 
precludes the introducing much of it now. A little space 
must, however, be devoted to this subject. 
Drummonn’s Swan River Plants. 
This day, Feb. 8, letters have arrived from our valuable 
correspondent, Mr. Drummond, at the Swan River, who 
is still engaged in discovering new plants in that remarkable 
country, many of which have been brought by the same 
Vessel that conveyed the letter, though they have not yet 
come to hand. His letter contains some singular Mosses, 
allied to the Phasca of Europe in appearance; but we 
have not had time to examine them. No one has a better 
eye for the Mosses than Mr. Drummond; and many novelties 
in this department may be confidently expected from him. _ 
We may observe, that of the thirteen sets of one thousand 
