in ma. 7:; 
Sulphuric acid for fumigation, purity required 30 32 
removal from carboys and drums 
Sulphur spra) s, against red spider and silver mite of Lemon L6 
Supply cart for fumigation 59-61 
Table to replace supply can iu fumigating on rough ground 61,62 
Tents, marking for estimating dosage i'. 
Tetranychu8 mytilaspidis. (Set Spider, citrus red. 
Thrips, enemy oi citrus fruits 1 1 
Toxic effect on citrus trees apparently produced by red, purple, and yellow 
Bcales L6 
Tray for carrying chemicals in present Bystem of fumigation 18 19 
Water as a factor in fumigation :;i 35 
in fumigation, correct proportion 
effect of differenl proportions on amounl and tempera 
uire of available gas 35 38 
Wood worth systems of measuring trees with and without apparatus 26 27 

