146 ICE-HOUSES. [No. 



of becoming damp, except from water actually put 

 upon it ; and it can, at the same time, be placed on a 

 roof, and (Hi sides, to suHi a decree uf thickness as 

 to exclude the air in a manner the mo- The 



ice-house ought, then- Ten-, to be made ofy^o.sVx, plates, 

 rfift/rst, /f//Ax, a in I straw. The best form is tht < 

 rif/arj and the house, when made, appears as I have 

 endeavoured to describe it in Fig. 3 of the plate. 



til 1. IMC. 1, a, is the centre of a circle, the diame- 

 ter of which is ten feet, and at this centre you put 

 up a post to stand fifteen feet above the level of the 

 ground, which post on^ht to be about nine inches 

 through at the bottom. ai,d not a great deal smaller at 

 the top. Great care must be taken that this post be 

 verfntly y,/T/r/////V/'//.-r; for, if it be not, the whole 

 building will he awry. 



'1'J. /; b 6 are fifteen posts, nine feet high, and six 

 inches through at the bottom, without much tapering 

 towards the top. These posts stand about two feet 

 apart, reckon ii litre of post to centre of post, 



which leaves between each two a -j ace of eigh 

 inches, r r r c are fifty-four posts, five feet high, and 

 five inrhrv throi;i:h at the bottom, without much 

 taperinir towards the top. Thr-e posts stand about 

 two feet apart, from centre of post to centre of post, 

 which leaves between each r ice of nineteen 



inches. The space between these two rows of posts 

 is four feet in width, and, as will be presently seen, 

 is to contain a wad of straw. 



*>.\\\. r is a passage through this w r all ; d is the out 

 side door of the passage ; f is the inside door; and 

 the inner circle, of which a is the centre, is the place 

 in which the ice is to be deposited. 



'.Ml. \\Yil. then, we have now got the posts up ; 

 and, before v.e talk of the roof of the house, or of the 

 ln<l for the ice, it will be best to speak about the mak- 

 ing of the wall. It is to be made of iff raw. wheat- 

 straw, or rye-stra\v. with no rubbish in it, and made 

 very smooth K ..1 as it is put in. You lay it 



-' r ;/ clnm-ly and Aery smoothly, so that if the wall 

 were cut across, as at g g, in FIG. 2 (which FIG. 2 



