I have always enjoyed in this cli- 

 mate. 



On purpofe to avoid every caufe 

 of obitructing my mind in the clofe 

 purfuit of the object I had in view, 

 and in tracing Nature in ks opera- 

 tion on this fuhjeci, I difengaged 

 myfelf from the noife of the me- 

 tropolis 5 and retired to a final] villa, 

 where I was out of the way of be- 

 ing, interrupted by any body in the 

 contemplaion of Nature. 



This work is a part of the refill t 

 of above 500 experiments, all which 

 were made in lefs than three 

 months, having begun them in 

 June, and finiihed them in the be- 

 ginning of September, working from 

 morning till night. From thefe 

 experiments feme more confequences 

 might have been drawn, if 1 had 

 had more time to employ myfelf 



in 



