APPARATUS AND METHODS USED IN PROCESSING. 7 



suddenly. The fruits in the desiccator are examined from time to 

 time to determine when processing is completed, taking care to close 

 at once after opening and to renew the supply of carbon dioxid quickly. 

 Carbon dioxid may be purchased from dealers in soda-water sup- 

 plies in liquefied form in steel cylinders holding 10 or 20 pounds at 

 about 10 cents per pound. This is equal to a cost of about 1.1 cents 



FIG. 1. Apparatus used in processing Japanese persimmons. A. Tank of galvanized iron. B. Desic- 

 cator. C. Cylinder of liquefied carbon dioxid with reducing valve- D. Detail showing construc- 

 tion of edges of the tank and cover. E. Water gauge. 



per cubic foot of the gas when expanded to atmospheric pressure. 

 These cylinders of liquefied carbon dioxid are under very high pres- 

 sure and must not be handled roughly ; neither is it safe to allow them 

 to become heated by the direct rays of the sun. The reducing valve, 

 which is shown attached to the cylinder in figure 1 , is very useful in 

 regulating the flow of carbon dioxid, and may usually be obtained of 



