eS 
ticifture from the air, from rainy 
and from dew; for it has been 
found a confiderable advantage to 
the growth of a tree, to water the 
ftem and the leaves now and then. 
But I leave the difcuffion of thofe 
articles to others, who have made 
thefe confiderations an obje& of 
their purfuits. The late Mr. Baker 
has publifhed to the world his mi- 
crofcopical obfervations on the fub- 
ject. Mr. Bonnet, of Geneva, has 
publifhed a very elaborate work 
upon the*fame, intitled, RzecAcrchcs. 
Jur Vujage des Fuerlles dans les Plantés, 
et fur quelques autres Sujets relatif a 
P Hiftoire de la Vegetation, par Charles 
Bonnet, @ Gottingen ef Leiden, 
1754. This work contains a great 
deal of interefting inquiries upo 
the nature, properties, and utilities 
of thofe wonderful organs; all which 
ey ~~ have 
