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Oshima: Formosan Termites 
377 
Table XXXIX. — Characteristics of Stop-rot. 
Color Dark brown. 
Specific gravity (at 28°C.) 1.048 
Flashing point (°C.) 85 
Fractional distillation: Percent. 
Below 210 15.00 
210 to 240 17.50 
240 to 270 15.00 
Above 270 50.50 
Residue (weight) 2.00 
Naphthalene (weight) 1.40 
Carbolineum Atlas . — Imported from Germany; a mixture of 
the anthracene oil and, the heavy oil of petroleum. 
Table XL. — Characteristics of Carbolineum Atlas. 
Color 
Dark brown. 
Specific gravity (at 28° C.) 
1.122 
Flashing point (°C.) 
128 
Fractional distillation : 
Per cent. 
110 to 210 
0.50 
210 to 240 
1.00 
240 to 270 
8.50 
Above 270 
62.50 
Residue (weight) 
26.10 
Crystal of anthracene (weight) 
0.90 
Crepit. — Manufactured by Nippon Wood-preserving Co. 
Tokyo ; mainly consists of creosote oil. 
Table XLI. — Characteristics of Crepit. 
Color 
Dark 
brown. 
Specific gravity (at 28° C.) 
1.022 
Flashing point (°C.) 
115 
Fractional distillation : 
Per cent. 
Below 210 
16.80 
210 to 240 
33.50 
240 to 270 
25.00 
Above 270 
23.30 
Residue (weight) 
4.50 
Crystal of anthracene (weight) 
0.30 
Wood-preservative B. — Manufactured by Nippon Paint and 
Asphalt Co. Ltd., in Tokyo. This is a mixture of tobacco ex- 
tract and creosote oil. 
METHOD OF EXPERIMENT 
Blocks of cryptomeria (2 by 2 by 15 inches) were coated 
three times with the preservatives and were buried in ground 
infested by Odontotermes formosanus at Tainan. From time 
