099 



rough logs on a dry spot of ground sloping 

 every way, to the amount of 1200 solid 

 feet, and then well covered with dry straw, 

 six or eight feet thick over the ice, so as to 

 exclude heat and rain from the ice how 

 would it keep ? or how a mass of ice half 

 in the ground, half above ground, in a pen 

 of logs built up and covered with straw ? 



Section of an ice-pit, with its log-cell in- 

 sulated with straw on all sides ; and a 

 house covering the whole. 



U 



