INDEX. 109 



Page. 



Fumigation of citrus trees, cautions, general 80 



chart for dosage (see also Fumigation of citrus trees, 

 dosage schedule). 



how to use it 34-37 



chemicals 40-51 



amount in very small dosages -. 48 



mixing 48-49 



proportions, most economical 47^8 



proportion when sodium cyanid is used.. -85 

 comparison of sodium cyanid and potassium cyanid 



for general fumigation 90 



cost 78-79 



cover for generators 74—76 



cyanid of potassium 40-41 



sodium, kind to purchase 88 



proportion used 85 



derricks and poles 20-21 



distribution of gas within a tent . 67 



dosage calculation 27-28 



factors affecting it 52-53 



schedule A, for high grade sodium cyanid... 88 



No. 1, for potassium cyanid 34 



|, for potassium cyanid 59 



f-A, for high grade sodium 



cyanid 88 



under improved system (with potas- 

 sium cyanid) 34-37 



dosages for scale pests in general (with potassium 



cyanid) 61 



various scale pests, with potassium cyanid 51-61 



sodium cyanid . . 88-90 



during blossoming period 64-65 



effect of presence of sodium chloric! on amount of gas 



given off 49-50 



on ladybirds (Coccinellidse) and Scutellista 



cyanea 77-78 



effects of cold 70-71 



heat 69-70 



light 71-72 



meteorological elements 68-72 



moisture 68-69 



temperature 69-71 



winds 72 



on different varieties 67 



unhealthy trees 66-67 



extent to which it is now practiced in California . . . 3-4 



factors which affect dosage 52-53 



field tests with sodium cyanid 86-87 



for physiological effects 67-68 



fumigating lemons 65-66 



generating vessels 24 



cover device 74-76 



historical 1-2 



improved system 32-40 



