Bui. 821, U. S. Dept. of Agriculture. 



Plate III, 



A Lisbon Lemon Tree in Plat 9, Typical of Protected Orchards. 



Wliile the top of this tree, which was protected by orchard heaters, was partially defoliated hy the 

 violent winds, the tree and its fruits were but slightly injured by the low temperatures of 1912-13. 

 Photographed in January, 1913. 



