COMPOSITION OF CALIFORNIA LEMONS. 



11 



Table 6. — Summary of composition of Eureka, Lisbon, and Villa Franca lemons 



{Tables 1 to 3). 



Tree No. 



Specific 

 gravity 

 of fruit. 



Oil per ton 

 of fruit. 



Acid per 

 ton of fruit. 



Eureka: 



l..: 



0. 9522 

 .9386 

 .9407 

 .9408 

 .9427 

 .9403 

 .9232 

 .9378 

 . 9397 

 . 9274 



Pounds. 

 9.9 

 9.2 

 8.9 

 11.3 

 10.0 

 8.6 

 9.6 

 10.2 

 9.8 

 7.8 



Pounds. 

 74.3 



10 



73.3 



li 



69.1 



13 ... 



66.6 



14 



61.4 



16 



63.9 



18 



62.1 



21 



65.2 



22 



61.4 



24 



47.2 









.938 

 ± .004 



9.5 

 ± .3 



64.5 





±1.3 



Lisbon: 



2 



.9046 

 .9121 

 .9324 

 .9250 

 .9141 

 .9126 



10.5 

 10.8 

 11.1 

 10.1 



8.1 

 10.0 



69.6 



4 



69.1 



5 



67.6 



6 



58.2 



12 



64.5 



15 



58.4 









.917 

 ± .004 



10.1 

 ± .3 



64.7 





± 1.2 



Villa Franca: 



3 



.9247 

 .9314 

 .9225 



11.7 



10.1 

 10.4 



72.7 



7 



52.9 



17 



62.2 









.926 

 ± .004 



10.7 



± .3 



62.6 





±1.2 



Table 7 . — Summary of analyses of different strains of Eureka and Lisbon lemons grown 



at Corona, Calif. 



Variety. ' 



Num- 

 ber 

 trees. 



Specific gravity 

 of fruit. 



Oil per ton 

 of fruit. 



Rind. 



Insoluble 



solids in 



pulp. 



Sugars 

 in juice. 



Acidity 

 of juice. 



Eureka 



10 

 5 



0.939 (±0.005) 

 .905 (±0.004) 



Pounds. 

 9.5 (±0.4) 

 10. 8 (±0.4) 



Per cent. 

 36.2(±0.9) 

 38. 8 (±0.5) 



Per cent. 

 1.9 (±0.1) 

 1.7(±0.07) 



Per cent. 

 2.5 (±0.1) 

 1.9 (±0.1) 



Per cent. 

 5.3 





5.7 







Table 8.— Relation between color and thickness of peel. 



Color. 



Number 

 samples 

 exam- 

 ined. 



Number samples found to be — 



Thin 



skinned. 



Medium 

 skinned. 



Thick 

 skinned. 



Eureka: 



'Dark green. . 



Light green. 



Light yellow 



Full yellow . 

 Lisbon: 



Dark green.. 



Light green. 



Light yellow 



Full yellow . 



