xv. 4 Oshima: Formosan Termites 367 
Table XXIV. — Physical and chemical properties 
of camphor green oil. 
[Poiseuille’s capillary viscosimeter modified by Ostwald was 
used in the determination of 
viscosity.] 
SAMPLE A. 
Color 
Dark Brown. 
Specific gravity (at 15° C.) 
0.9805 
Refractive index (at 17.5° C.) 
1.5035 
Optical rotatory power 
Unknown. 
Viscosity (at 20° C.) 
1.38 
Fractional distillation (ordinary atmosphere pressure) : 
Per cent. 
Below 210 
1.0 
210 to 230 
26.0 
230 to 240 
23.0 
240 to 260 
25.0 
260 to 300 
22.0 
Residue 
3.0 
SAMPLE B. 
Color 
Greenish brown. 
Specific gravity (at 20° C.) 
0.984 
Refractive index (at 20° C.) 
1.504 
Optical rotatory power 
Unknown. 
Viscosity (at 20° C.) 
1.67 
Fractional distillation : 
Per cent. 
Below 210 
1.0 
210 to 230 
10.0 
230 to 240 
26.0 
240 to 260 
25.0 
260 to 300 
35.0 
Residue 
3.9 
SAMPLE c. 
Color 
Yellowish brown. 
Specific gravity (at 20° C.) 
1.00 
Refractive index (at 20° C.) 
1.511 
Optical rotatory power 
+ ; degree unknown. 
Viscosity (at 20° C.) 
1.83 
Fractional distillation : 
Per cent. 
Below 210 
0.5 
210 to 230 
2.0 
230 to 240 
6.0 
240 to 260 
42.0 
260 to 300 
44.0 
Residue 
4.0 
167553 4 
