INDEX. 113 



Page. 



Supply wagon for fumigation, equipment 23-24 



Syrphus fly, enemy of mealy-bug (Pseudococcus citri) 63 



Tannin treatment for mildew-proofing fumigating tents 18-19 



Temperature, effects in fumigation of citrus trees 69-71 



Tents for fumigation 10-20 



bell tents 16 



gas-proofing them 16-18 



marking them 19-20 



mildew-proofing them 18-19 



sheet tents 10-16 



amount of cloth required for different sizes. . . 14-15 



cloth to use 12-13 



construction 13-14 



experiments with new tent material 12 



materials used 11 



new tenting material 11-12 



ring attachments and reenforcements 15-16 



sizes 11 



size to purchase 15 



Wagon. (See Supply wagon.) 



Water as a factor in fumigation 44-47 



correct proportion with potassium cyanid in fumigation 47 



sodium cyanid in fumigation 85 



in fumigation, effect of different proportions on amount of available gas. 45-47 



temperature of gas 45 



proportion with potassium cyanid for best yield of hydrocyanic -acid gas . 93 



sodium cyanid for best yield of hydrocyanic -acid gas. . . 93-96 



Winds, effects in fumigation of citrus trees 72 



Woglum, U.S., paper, ,; Fumigation of Citrus Trees " 1-81 



' ; The Value of Sodium Cyanid for Fumigation Purposes " 83-90 



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