INTRODUCTION. © 3 
the fruit, these parts, as being essential, must not be 
wantilig. 
4. Plants must not be gathered in moist weather, 
because at that. time they generally turn black in 
drying; and when it so happens, they must be left 
to dry for some time in the air. 
_ 5. Succulent plants are dried either with a wary 
Stone or a hot iron; or, which is better, they are 
_dipt in boiling water, and kept there for some mi- 
nutes and then dried in blossom paper m the usual 
way; butithe paper must be often changed. The 
flowers must not be allowed to get wet, and they 
must be pressed softly. 
6. Succulent, and at the same time tender plants, 
such as the Iris; must be dried between folds of 
writing paper, after one has: previously bruised the 
capsule; but this paper is not to be opened tll the 
whole plant is thoroughly dry. 
7. The Lichens are dried in the common way. 
8. But the Musci must be carefully plucked asun- 
der, and thrown into a vessel of water; and then laid 
between two leaves of moistened writing paper, 
which may be put in an old book with a consider- 
able weight on it. 
9. A press is likewise used for thistles and other 
strong leaved plants. 
10. ‘The Fungi in general are not easily preserved, 
_but the smaller and coriaceous kinds may be dried ; 
and afew of the larser ones may be prepared by 
being plunged into boiling water. 
A 3 When 
