THE TOXICITY TO FUNGI OF VARIOUS OILS AND SALTS. 



33 



Table IV. — Toxicity of various preservatives to certain wood-destroying and other fungi- 

 Continued. 



Toxic substance. 



B. — ORGANIC COMPOUNDS- 



continued. 



(a) Benzol and phenol de- 

 rivatives — Continued. 



Cresol calcium 



Do. 



Dinitro-p-cresol [CeHr 



(N0 2 ) 2 CH 3 OH]. 

 Sodium salt of— 



Dinitro-p-cresol, 21 



per cent. 1 

 1:2 dinitro-o-cresol, 



31 per cent. 1 



4:6 dinitro-m-cresol, 



59 per cent. 1 



Gallic acid [C 7 H 6 5 +H 2 0] 



Gallotannic acid [ChHio- 



OJ. 



Phenol [C H 5 OH] 



Phenol, pure 



O-nitrophenol [C 6 H4- 



N0 2 OH]. 



P-nitrophenol 



Sodium salt of — 



O-nitrophenol, 63 per 



cent. 1 

 P-nitrophenol, 60 per 



cent. 1 

 2:4 dinitrophenol [C 6 - 



H 3 (N0 2 ) 2 OH]. 

 2:4 dinitrophenol, 33 

 per cent. 1 

 Salycilic acid [C 6 H 4 OH- 



COOH]. 

 Sodium picrate [C 6 H2- 

 (N0 2 ) 3 ONa], 40 per 

 cent. 1 

 Thymol [C6H3CH3C3H7- 

 OHJ. 



(5) Tars and creosotes. 



Coal-tar creosote: 



Straight run, Amerj* 



can (sp. gr. 1.049 at 



15.5° C). 

 5 per cent gum-arabic 



emulsion. 

 German (sp. gr. 1.09 



atl5°C). 

 Sp.gr. 1.048 at 60° C. 



5 per cent gum-arabic 



emulsion. 

 German (sp. gr. 1.062 

 at 38° C). 



Do 



Do 



Do 



Carbolineum: 



Avenarius (sp. gr. 

 1.126 at 16.5° C). 



Do 



S. P. F. (sp. gr. 1.127 

 at 16° C.). 

 Coal-tar creosote: 



With bases, acids, and 

 solid hydrocarbons 

 removed. 

 With 20 per cent tar 



acids added. 

 With 20 per cent pure 

 naphthalene added. 

 With 5 per cent fil- 

 tered tar added. 



Organism. 



P. hirsutus 



Fomes annosus 



Coniophora cerebella. 



....do 



....do 



....do 



.do. 

 .do. 



....do 



Penicillium 



Coniophora cerebella. 



....do 



.do. 



.do. 

 .do. 

 .do. 

 .do. 

 .do. 



.do. 



Penicillium 



Polystictus versicolor 



Molds 



Fomes pinicola 



F. annosus 



Coniophora cerebella . 



Lenzites sepiaria 



Polystictus versicolor 

 P. hirsutus 



Fomes annosus. . 



F. pinicola 



F. annosus 



Penicillium . . . 



....do 



....do 



....do 



Toxic point. 



Per cent. 

 Between 1 



and 2. 

 Between 

 0.14and0.28. 

 Under 0.1... 



Under 0.01., 

 Under 0.003. 

 Under 0.005 



Under 2. 

 Under 1 . 



Under 0.1... 



0.15 



Under 0.02.. 



Under 0.01 . . 



Under 0.013. 



Under 0.025. 



Under 0.01 . . 



Under 0.003. 



Under 0.1 .. . 



Under 0.04 . . 



Under 0.01 . 



0.15 



Culture 

 medium. 



Agar. 

 ...do.. 

 ...do.. 



...do.. 

 ...do.. 

 ...do.. 



..In. 



.do. 



..do. 

 ..do. 

 ..do. 



..do. 



..do. 



..do. 



..do. 



..do. 



..do. 



..do. 



..do. 



Agar.... 



0.25-0.40 ...do.... 



0.2 '...do 



0.225 1. .do.... 



0.55 ...do.... 



Under 0.125. ...do.... 



Under 0.125. 

 Under 0.25 . . 

 Under 0.25 . . 



5.25 



...do. 

 ...do. 

 ...do. 



0.30.. 



4.5... 



0.85 



0.15. 

 0.95. 



0.45. 



..do.... 



..do. 

 ..do. 



..do... 



Duration of 

 test. 



8 days 



4 to 7 weeks.. 

 8 to 10 days.. 



....do 



do 



do 



.do. 

 .do. 



....do... 

 4 weeks . . 

 8 to 10 days.. 



...do... 



...do... 



...do... 



...do... 



...do... 



...do... 



...do... 



.do. 



4 weeks . . 



4 weeks 



4 to 6 weeks. 



do... 



8 days 



.do. 

 .do. 

 .do. 



4 to 10 weeks 



5 to 6 weeks. 

 5 to 8 weeks. 



.do. 

 .do. 

 .do. 



4 weeks. 



.do. 

 .do. 

 .do. 



Investigator. 



Rumbold. 



Humphrey and 



Fleming. 

 Falck. 



Do. 



Do. 



Do. 



Do. 

 Do. 



Do. 



J. M. Weiss. 

 Falck. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



J. M. Weiss. 



Dean and 



Downs. 

 J. M. Weiss. 



Humphrey and 

 Fleming. 

 Do. 



Rumbold. 



Do. 

 Do. 

 Do. 



Humphrey and 

 Fleming. 

 Do. 

 Do. 



J. M. Weiss 



Do. 

 Do. 

 Do. 



1 Toxic value based on 100 per cent pure salt. 



