( X ) 



Th e mouth of the funnel that coUeded 

 the water, meafured exadly 288 fquare 

 Englifli inches ; was Tet horizontal, in a 

 place pretty equally expofcd to every 

 wind ; and the water was received into 

 a large glafs bottle, with a narrow mouth, 

 and was carefully covered from the fun, 

 to prevent evaporation. 



The water was all weighed, and 251 

 Englifh Troy grains allowed to each cu- 

 bical Englifh inch of rain-water. 



I thought it moft proper to begin with 

 the month of 0(5tober, rather than Janu- 

 ary, in order to diftinguifh between the 

 proportion of rain that fell in the winter 

 and fummer feafons, which are adapted 

 to very different operations ; and 1 pro- 

 pofe to keep a regular account of the rain 

 for fome years ; fo that, by flriking a me- 

 dium, one may be able to form a tolerable 

 judgment in which month the greateft of 

 fmalleft quantity of rain may be expedl- 

 ed ; which may be of ufe in carrying on 

 works which require dry or wet weather. 



An 



