24 BULLETIN 227, U. S. DEPARTMENT OE AGRICULTURE. 
Avenarius carbolineum . 
[Laboratorv sample No. 1843'. Cooperator, Carbolineum Wood Preserving Co., Milwaukee, "Wis. Thick 
liquid at room temperature: specific gravity, 1.126 at 16.5° C; flash point. 139° C; burning point, 166° C; 
1.1 per cent distills below 215° C; 6.1 per cent distills below 275° C; 1.91 per cent tar acids.] 
Tests. 
Times 
killing 
point 
verified. 
Concentration of the preservative (per cent). 
Fungus. 
Num- 
ber. 
Dura- 
tion. 
0.175 [ 0.275 
! 
0.3 
o.s 
1 
4 
5 
5.25 . Check. 
Weeks. 
4 to 10 
5 to 6 
1 
2 
| 
2 

2 
1 
1 
1 

4 
A i 
4 
I 
Forms annosus: In 18 days, the radial growth of the check reached nearly 40 mm.: 
0.3 per cent. 17 mm.; higher concentrations up to 4 per cent showed 1 to 6 mm. In 
four to six weeks, 5 per cent reached 1 mm. The growth on the toxic media was 
similar in appearance to that on the check. 
Forties pinicola: In two weeks the radial growth of the check reached 40 mm.; 0.175 
per cent showed no growth. In torn' weeks, 0.175 to 0.275 per cent reached 1 mm. 
The growth on the toxic media was compact and darker than that on the check. 
S. P. F. carbolineum. 
(PI. Ill, fie 
[Laboratory sample Xo. 1844. Cooperator, Bruno-Grosehe & Co., New York, X. Y. Thick brown liquid, 
specific gravity, 1.127 at 16° C; flash point, 133° C; burning point, 157° C.'; less than 9 per cent distills 
below 245° C.:' about 30 per cent distills below 320° C: 2.42 per cent tar acids.] 
Tests. 
Times 
killing 
point 
verified. 
Concentration of the preservative (per cent). 
fungus. 
Xum 
ber. 
Dura- 
tion. 
1 
1 .5 
1.75 
2 
3 
4 
I 
4.5i 1 check. 
73 
Weeks. 
5 to S 
1 
1 { 
1 
1 
1 
4 
. 
I 
. 1 The growth of Fomes annosus on concentrations above 3 per cent is very slight, usually not exceeding 
1 mm. in sis weeks, and the actual toxic point is difficult to locate. It lies between 4 and 6 per cent. 
Fomes annosus: In four weeks the radial growth of the check reached about 40 mm.; 
1 and 1.5 per cent, 1 mm. In six weeks, 1 and 1.5 per cent showed 5 mrm; 1.75 to 
4 per cent, 1 to 5 mm. Tests were not made on concentrations below 1 per cent. 
The growth on the toxic media was quite similar in appearance to that on the check. 
Water-gas tar distillate. 
(PI. Ill, figs. 27 and 28.) 
[Laboratory sample Xo. 2235. Cooperator, United Gas Improvement Co., Philadelphia, Pa. Greenish 
brown liquid; specifie gravity, 0.995 at 60° C; flash point, 81° C: burning point, 93° C; 3.3 per cent 
distills below 180° C; 61.7 per' cent distills below 275° C; 80.3 per cent distills below 320° C] 
Tests. 
Times 
j. 1 -in.- 
point 
verified. 
Concentration of the preservative (per cent). 
Fungus. 
Xum- 
ber. 
Dura- 
tion. 
0.1 
0.2 0.3 0.35 
i 
0.4 
| 
0.45 0.5 0.6 
0.65 
Check. 
,,s 
Weeks. 
5 to 8 

4 
1 o | 2 
1 
1 
1 

4 
