xv, 4 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 



Specific gravity (at 28° C.) 

 Flashing point (°C.) 

 Fractional distillation : 



110 to 210 



210 to 240 



240 to 270 



Above 270 



Residue (weight) 



Crystal of anthracene (weight) 



Crepit. — Manufactured by Nippon Wood-preserving Co. Ltd., 

 in 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: Percent. 



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 



Dark 



brown. 



1.122 





128 







Per cent. 





0.50 





1.00 





8.50 





62.50 





26.10 





0.90 



