dedication. 
only vigoroufly to draw to great 
heights plenty of nourishment from 
the earth 5 but alfo more Sublimed 
and exalted food from the air, that 
wonderful fluid which is of fuch im- 
portance to the life of Vegetables 
and Animals : And which by infinite 
combinations with natural bodies, pro- 
duces innumerable Surprizing effects j 
many inftances of which I have here 
Shewn. 
The Searching into the works of 
Nature , while it delights and in- 
larges the mind, and ftrikes us with 
the ftrongefl: aflurance of the wifdom 
and power of the divine Architect, 
in framing for us So beautiful and 
well regulated a world, it does at 
the fame time convince us of his 
conftant benevolence and goodnefs 
towards us. 
A 3 That 
