FROST PROTECTION. 361 



used to advantage. If the water has a constant temper- 

 ature of 60 to 70 degrees F., much can be accomplished, 

 provided sufficient of it is available, and can be readily 

 applied. 



The ameliorating influence of adjoining bodies of 

 water should not be overlooked, and, whenever possible, 

 the grove should be so located as to receive the beneficial 

 influence of the heat given off slowly by a body of water. 

 The water becomes heated during the day. It parts with 

 its heat more slowly than the land, during the night, and 

 its influence is considerable. 



TENT PROTECTION. 



Protection of citrus trees by means of tents has been 

 quite successful. 



Various kinds of tents and structures working on the 

 same principle have been tried from time to time. Trees 

 have been boxed, or covered over with boards or veneer, 

 but more usually cloth of some kind has been used. 



The two styles of tents which have been most com- 

 monly used in Florida are shown in Plate XXII, Figs. A 

 and B. The first known as MacFarland's tent, consists 

 of three posts, supporting a cypress hoop surrounding the 

 tree. The tent itself is shown at the left, drawn together 

 about the derrick-like frame. It is strengthened from top 

 to bottom by means of slats which project below the bot 

 torn of the cloth and are shoved into the ground to keep 

 the tent more securely in place. On the approach of cold 

 weather, the tent is drawn around the framework, closed 

 up and the supporting slats shoved into the ground. 



Mr. E. O. Painter, of the E. O. Painter Fertilizer 

 Company, Jacksonville, Fla., was the originator of the 

 second style of tent. It consists of four posts set in the 



