78 FUMIGATION METHODS 
instance, if the difference between the distance over 
and around the tree is five feet, and the differential for 
the circumference is three feet eleven inches, then the 
dose must be increased or diminished by a little more 
than a half ounce; but if the differential is one foot, 
then for each foot there must be added or subtracted 
one-half ounce, or two and a half ounces for the five 
feet. 
CYANIDE NECESSARY FOR TREES OF VARIOUS SIZES 
IN CALIFORNIA 
0.3 PER CENT. GAS 0.2 PER CENT. GAS 
CYANIDE 
16 Ounce Circumference Circumference | 14 Ounce 
Differential of Tree of Tree Differential 
Ft. In. Ounces Imp bal Ft, In. 
3.5 2 22 1 3 11 
3 216 23° 364 
PA te 3 25 2 il 
2 4 316 26 4 Pfs 
2 2 4 Bel Fg 216 
al aul 416 28 9 2 4 
1 10 5 29 10 22 
1 9 26 10 54% 30 9 2 
a 27.8 6 31 «8 1 10 
uf 28 5 616 32 7 i) 
i 29 1 @ 33° «4 1 8 
p is) 29 «9 1% 34 il eg 
il és 380 «4 8 34 «8 it {a} 
sb 83 31 6 9 36 «1 1 5 
ib ey 32.=«7 10 37 Ob ea 
ake fal 33°~«C«88 11 38° OT 138 
a 34. 88 12 39 10 1 2 
11 35 OY 13 40 11 ayaa 
10 36 «6 14 al aul il al 
10 37 «OB 15 42 10 1 
9 38 3 16 43 9 11 
9 39 ileg 44 8 11 
8 39) 9 18 ASG 10 
8 40 5 19 46 5 10 
te 41 2 20 7 3 10 
q 42 8 22 48 9 9 
iG 43 11 24 50 2 9 
6 45 26 56 8 
6 46 1 28 52 8 8 
6 47 2 30 54 uf 
5 48 2 2 bd) (3 7 
