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HORTICULTURE FOR SCHOOLS 



TABLE II 



To obtain specific gravity, first find Brix reading, then make correc- 

 tion for temperature; then take next reading found in the left hand 

 column of figures in table above and note opposite the specific gravity 

 in the right hand column. E. g. If the Brix reading is 11.4 and if the 

 temperature is 22 "C.," then the temperature correction is .3 and this 

 correction is to be added. Adding .3 to 11.4 gives 11.7 and the specific 

 gravity for orange juice whose Brix reading is 11.7 is 1.04726. 



EXERCISE VI. Cold storage. 



Procedure. If there is a cold storage plant within a reasonable 

 distance of the school, the class should visit it, noting such points as 



