The Canadian Horticulturist. 



87 



CONSTRUCTION OF AN EVAPORATOR. 



Sib, — Is there an evaporator manufactured in Ontario ? How is sulphur applied ? 

 Is it sprinkled on the apples, or burned in a vessel under them ? About how much duty 

 would we have to pay on an evaporator which costs in the States, say, $30 ? 



George Mabshall, Clarksburg. 



S we have stated before, there is no factory in Ontario, so 

 far as we know, where evaporators are constructed ready 

 for sale. The duty is 30% ad valorem. It might be inter- 

 esting to some of our readers were we to repeat the descrip- 

 tion of an easily constructed evaporator, which was des- 

 cribed in the Horticulturist for 1891. (See Fig. 431.) 

 " It is built of wood. All the frame required is the 

 upright, 2 by 2 inch posts and the 2 by 3 inch horizontal 

 drawer rests. The drawer rests are placed flatwise and between the posts, rab- 

 beted one-half inch on each inhalation of air. The end drawers are 4 inches 

 deep and 5 feet long, and are used to finish on. Have four extra drawers, and 

 have some extra front pieces to put in and close up the openings when the 

 drawers are out. The sheet-iron fenders, A B, extend the whole length, to 

 distribute the hot and cold air. The cold air enters the ventilators below A, 

 and is divided by B. The arch C is sheet-iron, with a two inch flange, resting 

 on the wall of the furnace, which is two feet high and two feet wide, laid in 

 mortar. The top course of brick is laid in mortar, in the flange, to prevent the 



Fio. 431.— Home-made Kvapobator. 



