INDEX. 
Leaves ipromotQ Perfpiration 29, 30. 1 . 
Ufeful to the adjoining P'ruit 30. I. 
Imbibe Moiflure 133, 145. 1 . 
Their ufe 324, 333, 355. I. 
Imbibe Air 329. I. 
The manner of their Expanfion 345. I. 
To be pruned with Care 370. I. 
Ligaments, their Strength 172. II. 
Lightening deilroys the Air’s elallicity 261. I. 
Kills thereby 261. I. 
Its Ededf on Liquors what 261. I. 
Its firft Ignition whence 288. II. 
Its crooked Dartings not from following a 
Train of fulphureous Vapours 291. II. 
Lime of Vitriol 227, 309. I. 
And Vinegar ibid. I. 
And Sal Ammoniack ibid. I. 
Its Fire Particles what 287. I. 
Lungs of a Calf, their inward Subftance meafured 
239- 1- . . 
In them the Air lofes its Elallicity 248, 249, 
253. 254. 1. _ 
How much their Warmth makes frefh Air 
expand 248, 249. I* 
Suffocation whence 249. I. 
Their Veficles eafily penetrated by Air 246, 
247. 1. 
The Force requifite to raife them 254. I. 
When dilated, give a freer Paflagc for the 
Blood thro’ them 6. II. 
Why they heave quick in nearly expiring Ani- 
mals 6. II. 
An Eflimate of the Blood’s Velocity in them 
61, &c. II. 
Liquors flow freely into its Veficles, from the 
pulmonary 
