THE CITRUS INDUSTRY 93 



packing house and depends upon time in transit 

 and re-icing to reduce the fruit and maintain it 

 at a safe temperature. The heavy losses sus- 

 tained under this plan, amounting in some 

 cases to thirty per cent., attest the inadequacy 

 of the system. The insulation and refrigera- 

 tion of the car should be required to do only 

 one act maintain a safe temperature and 

 not be required to develop as well as maintain 

 that temperature. 



Normal ice temperatures are not rigorous 

 enough to rapidly drive the heat out of a car- 

 load of fruit so that a safe temperature can 

 be developed before injury has actually taken 

 place from moulds and rots. The mass of the 

 load and the size of the unit packages impose 

 too great a burden upon the ice and insulation 

 of the car to secure satisfactory results. The 

 car, when well built and fully iced, will carry a 

 precooled load safely across the continent, but 

 it cannot receive a hot load, cool it, and safely 

 transport it. Preceding is the factor which 

 guarantees the work of the refrigerator car in 

 the handling of highly perishable products. It 

 is such safeguards that place industries in the 

 intensive class. 



Lemon Curing. The art of curing lemons 

 was for many years attended by heavy losses 



