32 
BULLETIN 227, U. S. DEPARTMENT OF AGRICULTURE. 
Table IV. — Toxicity of various preservatives to certain wood-destroying and other fungi — 
Continued. 
Toxic substance 
Duration of 
test. 
Investigator. 
A.— INORGANIC COM 
pounds^— con. 
Ammonium fluorid 
Copper fluorid [CuF 
2H 2 0], pure. 
Copper silico-fluorid [Cu- 
SiF 6 ], pure. 
Copper sulphate [CuS0 4 + 
5H 2 0]. 
Copper sulphate 
Ferric fluorid [FeF 3 ] 
Ferric sulphate [FeS0 4 + 
7H 2 0]. 
Ferrous fluorid [FeF 2 ] — 
Hydrofluoric acid [HF], 
100 per cent. 
Hydrofluoric acid 
Hydrofluorsilicic acid [H 2 
SiF 6 ]. 
Hydrofluorsilicic acid 
Magnesium silicofluorid 
[MgSiF 6 +6H 2 0], 95 per 
cent. 
Magnesium sulphate 
[MgS0 4 +7H 2 0]. 
Mercuric chlorid [HgCl 2 ] 
Potassium fluorid [KF], 
pure. 
Potassium fluorid 
Sodium chlorid [NaCl].. . 
Sodium chlorid 
Sodium fluorid [NaF] 
Sodium fluorid, tech. re 
fined. 
Sodium fluorid 
Sodium fluorid, tech 
Do 
Sodium carbonate 
C0 3 ]. 
Sodium silico-fluorid 
[Na 2 SiF 6 ], about 100 per 
cent. 
Sodium silico-fluorid 
Zinc chlorid [ZnCl 2 
Zinc chlorid 
Zinc chlorid, commercial. 
Do 
Zinc fluorid [ZnF 2 ] 
Acid zinc fluorid, tech 
Acid zinc fluorid [ZnFr 
HF]. 
Zinc silico-fluorid 
Zinc silico-fluorid [Zn- 
SiF 6 +6H 2 0]. 
Zinc sulphate [ZnS0 4 + 
7H 2 0]. 
B.— ORGANIC COMPOUNDS 
(a) Benzol and phenol de- 
rivatives. 
Anilin [C 6 H 5 NH 2 ] 
Cresol [C 6 H 4 CH 3 OH] 
Cresol 
Do 
Do 
Cresol, pure 
Cresol calcium 
Do 
Do 
Netzsch. 
Falck. 
Do. 
Do. 
Malenkovic. 
Netzsch. 
Falck. 
Netzsch. 
Falck. 
Netzsch. 
Falck. 
Netzsch. 
Falck. 
Do. 
Do. 
Do. 
Netzsch. 
Falck. 
Malenkovic. 
Do. 
Falck. 
Netzsch. 
Humphrey and 
Fleming. 
Do. 
Rumbold. 
Falck. 
Netzsch. 
Falck. 
Rumbold. 
Do. 
Do. 
Do. 
Humphrey and 
Fleming. 
Do. 
Netzsch. 
Falck. 
Netzsch. 
Do. 
Falck. 
Do. 
Falck. 
Rumbold. 
Do. 
Do. 
Do. 
J. M. Weiss. 
Rumbold. 
Do. 
Do. 
