SULPHUR TRIOXID IN FOLIAGE ABOUT ANACONDA. 23 
SULPHUR TRIOXID IN THE FOLIAGE OF TREES AROUND WASHOE 
SMELTER. 
The samples of injured foliage near the smelter and of uninjured 
foliage of the same species of trees beyond the apparent range of 
smoke damage, collected on the trips enumerated, were examined for 
sulphur trioxid and ash and the results were compared, as in the Ten- 
nessee investigation. The soils beneath the injured and uninjured 
trees were examined for sulphur trioxid, to determine whether any 
increase in the sulphur trioxid of the injured leaves could be due to 
an increased amount of this constituent ‘n the soil. In the following 
table are given the results obtained: 
Taste ITT. 
Sulphur trioxid in foliage, in ash, and in soils around Washoe smelter. 
{Calculated to dry basis.] 
NORTH OF SMELTER. 
Ash in 
Sulphur trioxid— 
Serial rene Location and approximate leaves —— ————— -- 
No. Description of sample. distance from smelter. and 
needles. In leaves.| In ash. In soil. 
, Per cent. Per cent.| Per cent. Per cent. 
4153 Foliage, injured red | 5 miles N, 23 miles up Lost 4.39 ita Gl OO Nees ee 
(fir: | Creek Gulch. 
4879 Foliage, uninjured red, 18-19 miles N, 13 miles up Tin 4.52 84 TSN. Na wee os 
fir. i Cup Joe Gulch, seemingly 
| | beyond range of damage. | | 
4882 |... “(ead Are ee ee eee oC ee ee 1. Sear 4.57 86 18 804s ses 
Average.......- | eee Sector aed py nS ecto ctt ec tiin ee 85 13.704 2282.8 = 
pane caibenciply Ng Ss, bee tA eee) ee a 8 [PRR ee re ee 
4883 | Soil beneath No. 4879. _..-_-- RSE Seen = (Sette ase Sere eed pee me 33 .02 
ASS sam OOUECHeH LMWNO: 48822) 2 «26 oa> a5 fae Boas See ee ee oe err etl SESS SEP : .013 
| | 
| | | 
4154 Foliage, injured red 5 miles N, 23 miles up Lost | 4.43 125 Pico ar A ae al 
eee Creek Gulch. 
4879 | Foliage. uninjured red 18-19 miles N,1} miles up Tin | 4.52 cd are wipresk soe 
firs | Cup Joe Guich, seemingly 
| beyond range of damage. 
ABS? |S oe = CGE <1 ee seer Neos GO nese teens So see eee sce 4.57 86 NS SP nto oe eee 
Pyerage: —.. <2... ee PCE aaa ene ae ae ESSae oe 85 oh le earn ee 
aige.| Soiltbenenth No. 4154 ).- | 2 Los.) Sick. ie... 2tk.- Cae eee ~ Pee 
AS Soa MOM UNCHEAEO ENON ase le ee oe skeet ee Pay Roy se oe a fice Sheree 4.2 .02 
Bisex eps rGvll'| DSSCVeeM LOL IS ICy Uk ots yOeR ae een ee a i Se ee a i ee (Ake ee .013 
4222 Foliage, injured 10miles N,3 milesup Mod- | 2.61 AT 13Q. 1 48 eee 
lodgepole pine. esty Creek Gulch. 
4877 | Foliage, uninjured | 18-19 miles N, 14 miles up Tin 2.45 .49 20.00. Se See 
lodgepole pine. Cup Joe Gulch, seemingly 
beyond range of damage. | 
ASTS* |e a: ae ae ee et ean eee COR re ree Bn ace 2.87 61 AE ea SB ate 
Average....:... Nets OM ie ote ints ne bee Kee Ae eae 55 oy Oy ti 
4168 | Soil beneath No. 4222 .|..........2.2.-.2e-eeceeeeee+e- eae oe es ae “15 tongs 
SHOU ERRAND aa Ic R/S ER OP a ee re |e ee Pee Cee ll ; 
Be ee ee ce pute 
4223 | Foliage, injured) 10miles N, 3 miles up Mod- 2.82 | 74 26:29 eee 
| lodgepole pine. esty Creek Gulch. 
4877 | Foliage, uninjured | 18-19miles N, 1} miles up Tin 2.45 | 49 UTD Be eee 
lodgepole pine. ° | Cup Joe Gulch, seemingly 
beyond range of damage. 
AST Slee. Os 8 et ere GUC: AHS ee ee a ae a 2.87 61 2.26: )) ee 
Poli Cey i Ne4s gage al | a he SEI SS a a) 20.63 fr yaes 
