EFFECTS OF FREEZES ON CITRUS IN CALIFORNIA 321 



The value of the fruit in the different plots, computed to the acre 

 basis, was secured through the owners of the orchards who furnished 

 the figures of the actual returns for this fruit during the period 

 of observation, and it, together with the average cost of heating, will 

 be found summarized in tables 16 and 17. 



The writers do not believe it to be necessary for them to comment 

 on the results, as the tables are self-explanatory. They hope that it 

 may prove to be of some value, in that it shows the actual behavior 

 of heated and unheated Eureka and Lisbon lemon trees in the Corona 

 district for the year following the freeze. 



The observations presented here were made possible by the hearty 

 co-operation of the lemon growers owning the orchards in which 

 experiment plots were located. All of the expense of picking, loss 

 of fruit due to cutting, information as to cost of heating, value of 

 crop, and other factors have been furnished by these growers. 



The writers' only concern has been to secure reliable data to add 

 to the subject of the practical value of orchard protection as a whole. 



