The Nuts. 109 



10. Lemons are cut from the tree before maturity, and as 

 fast as they attain a given size. They are mostly harvested 

 in winter, and are cured in special buildings (145). 



11. The lime thrives on poorer soil and nearer salt water 

 than other citrous fruits. It is grown in the United States 

 chiefly in south Florida (146). 



12. The pomelo resembles the orange in form and ap- 

 pearance, but is paler in color and much larger. The fruit 

 is borne in clusters. It is rather extensively cultivated in 

 south Florida and California. Its culture differs little 

 from that of the orange (147). 



SUGGESTIONS FOR LABORATORY WORK 



1. Within the regions where citrous fruits are grown, 

 students may be required to study the characteristics of 

 the different species and varieties, the insect enemies, etc., 

 as recommended in the section on the stone fruits. 



2. The character of the orange, as modified by the climate 

 in which it was grown, may be studied in the local market 

 in all localities. The structure of the Navel orange, as 

 compared with other varieties, may also be studied, as well 

 as the methods of packing, varieties, etc. 



3. The different species of citrous fruits may be studied 

 in the local market. 



Section 5. — The Nuts 



148. Present condition and prospects of nut culture. 



Little attention has thus far been given to the cultivation 

 of nut trees in the United States or Canada. Several kinds 

 of nuts are common in our markets, but the chief supply 

 of native nuts still comes from wild trees. The consump- 

 tion of nuts is increasing, while the forest areas are rapidly 



