The CONTENTS. 
Of charcoal, or burnt vegetables 
Page 
3°4 
Of the texture of cork 
3°5 
Of a plant growing on the blighted or 
yellow fpecks 
of damafk rofe-leaves, &c. 
307 
Of mouldinefs 
308 
Of mofs 
309 
Of fponge 
3 11 
Of the beard of a wild oat 
ibid. 
Of falts 
312 
To extradf vegetable falts 
3*3 
Of the figures of falts 
3 l 5 
On ftriking fire with a flint and fleel 
3 i 7 
Of fmall diamonds or fparks in flint 
3 i 9 
Of mercurial powders 
ibid. 
The nature of fnow 
320 
Micro- 
