vi 
FUMIGATION METHODS 
CHAPTER XIX 
RECENT WORK WITH HyprocyaAnic AcID GAS . 
Successful application in England—Vineries 
and Conservatories—Use on ordinary green- 
house pests—Use in New South Wales—Cost of 
material for tents—Orchard work in Cape 
Colony—Experiments at New York Agricul- 
tural Experiment Station—Fumigation of or- 
chard trees. 
CHAPTER XX 
EconoMic VALUE CF FUMIGATION 3 A 
First use upon nursery stock—Fumigating 
greenhouses—Olive trees fumigated—Fumiga- 
tion understood and appreciated—The superi- 
ority of fumigation—Operations in Canada— 
Form of fumigating box—Common-sense views. 
CHAPTER XXI 
FUMIGATION WITH CARBON BISULPHID 4 
First use to destroy insects—Chemical proper- 
ties—Commercial uses—Instruments for appli- 
cation—Fumigating mills and other buildings— 
Practical work—Precautions—Effects upon 
seeds—Fruits and plants—Destroying pests in 
woolens, furs and clothes—Killing prairie-dogs, 
gophers, squirrels, etc.—Expert opinions of its 
practical value—Exterminating rats and mice— 
How it is put up. 
CHAPTER XXII 
LAws REGULATING NURSERY AND OncHAne INSPEC- 
TION AND FUMIGATION ‘ 3 
General review of the situation in the United 
States—Abstracts of State Laws. 
CHAPTER XXIII 
FOREIGN LAws REGULATING SHIPMENTS OF FRUITS 
AND NURSERY STOCK A : ‘é 
Abstracts of the Foreign "Reeulavions ist 
of ports of entry. 
PAGE 
198-220 
221-256 
257-284 
285-302 
303-309 
