DESCRIPTION OF PLATE XXI. 



Steam spray-cooking appliances for small orchards. Figs. 1 and .3 show }:)oilers suited 

 to cooking sjirays in 1 to 3 barrel lots; fig. 2 shows a boiler connected with a tank in 

 whiili larger quantities of spray may be boiled at one time. These cooking appli- 

 ances are well adapted to use in ten-acre orchards (p. 157) . (Compare with PI. 

 XXII.) 



