. Monsieur Thouin’s Letter. - 309 
SS eee 
“This assortment is composed of almost four hun- 
dred little packets of seeds of trees, and plants ; exotics: 
in North America, and which may be accommodated 
to every department of rural and’ domestic economy. 
The packets of the greatest part of the several species 
being in duplicate, contain a sufficient quantity of seeds 
to be capable of diffusion among a great number of | 
the members of the society, who will cultivate them 
in various soils, different situations, and by many modes 
of culture; and thereby multiply the chances of suc- 
cess. In this way more certain results will be afforded, 
than if the whole were sown in the same kind of soil, in, 
one place, and in one mode of cultivation. 
“« If the collection now sent is agreeable to the society, 
or to any of its members, and they desire to receive one 
similar, they have only to communicate to me their re- 
quests ; and they will find me always disposed to pro- 
cure for them every thing I have at my disposal, in the 
extensive establishment committed to my care. The 
society will acquit itself with interest, by transmitting, 
described or not, some seeds of the vegetable products 
which grow between the Allegheny mountains and the 
South Sea, in the countries which American travellers 
begin to frequent. | 
Respectfully, 
THOUIN.”’ 
