SULPHUR TRIOXID IN FOLIAGE ABOUT ANACONDA. 
5 
2 
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- 
The soils beneath the injured and uninjured 
nessee investigation. 
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 in the soil. 
table are given the results obtained: 
In the following 
Taste III.—Sulphur trioxid in foliage, in ash, and in soils around Washoe smelter. 
[Calculated to dry basis. ] 
NORTH OF SMELTER. 
Serial 
No. 
4168 
| 
38816—Bull. 118—10——4 
Ashin Sulphur trioxid— 
ahene | Location and approximate | leaves = 
| Description of sample. | F | | 
| distance from smelter. | Re In leaves., In ash. | In soil. 
| | Per cent. | Per cent.| Per cent. | Per cent. 
Foliage, injured red | 5 miles N, 2} miles up Lost | 4.39 | ayy | 25 29M aye eee 
fir. Creek Gulch. | 
Foliage, uninjured red | 18-19 miles N, 13 miles up Tin | 4.52 | 84 | SRS stash aN Ca 
fir. | Cup Joe Gulch, seemingly | 
beyond range of damage. 
eee GOP ieee Sera Oge cecinen? see eser eee ue 4.57 86 IS Re soda tease 
JOVI RE a in somal Goeeeioae hoe ap OSB eooesooeeasrs se Seoesaeeae .89 | TS at OW eres eta 
DOMHCNCACHRNOm 4 Osu Seer Suen tans pean. Narre m tis [Sees Cte ee 0.08 
SOUsMeM eat MIN Ost48)7. OR | Meee erie ees ae se oe RE ere el Soe ete) od He Meee aie 02 
SoisbenesthyNors4So2 slant eA seo a Seren eee a ie pet bee .013 
Foliage, injured red | 5 miles N, 2} miles up Lost 4.43 125 DAS Ad is Oe os ee ae 
fir. Creek Gulch. | 
Foliage, uninjured red, 18-19 miles N,1} miles up Tin 4.52 | .84 | TRESS ahaa eee 
fir. Cup Joe Gulch, seemingly 
beyond range of damage. 
bases BVO ses SoGie ey SCE STE HAO | 0) a eg see eee a ea 4.57 .86 IR teyA. segeiaoeac 
AOU Be Sa Bele ee ee te aes neta = es 2 eee [ee ee .85 SHO) eee eee were 
SOUL ESSA INO 2 BUY A a a ete [a Sm Lee ae) ey an ee 08 
SOMBMCMEAL BIN O48 (0 ml tema Me set ceth ae shey Ret ay Nike oye cree [Spies etna | APES ge NN i Se 02 
SOIT OSTACR HAD INIOs Zia Ee el a oe ee ee [peek esos | Shaca aeerances [eae 013 
Foliage, injured. 10 miles N,3 milesup Mod- 2.61 LOC PAO ese ee 
lodgepole pine. esty Creek Gulch. 
Foliage, uninjured | 18-19 miles N, 13 miles up Tin 2.45 49 | 202 00g Stee 
lodgepole pine. Cup Joe Gulch, seemingly 
beyond range of damage. 
ee si GO te ph Ss SSS Cee SEO Oe a ae ae eee rae 2.87 | 61 PAN PAY | een ene 
INSTT es UN aoe Ae ren apes |e Ceo | 5 DOROS |e eee 
SO! Sea W IN@¢O272e | nese seer seep Booares seacenel ocbes nae Beeet aaa oe ae | .02 
Sollocoen wel INO. Oral ba cececase be seoukoeoosecelocesd Geom aisene Es asaeeeae Soa men seem | 02 
SOIMOCLTO DLN BIN OAS Tie epee ee oa sec ne ee ms See et |e ee eM aN he 2a | hae 
Foliage, injured | 10miles N, 3 miles up Mod- 2.82 74 | 26):248 lie. eae 
lodgepole pine. esty Creek Gulch. 
Foliage, uninjured | 18-19miles N, 1} miles up Tin | 2.45 49 | 20°00) |e aeeee 
lodgepole pine. Cup Joe Gulch, seemingly 
beyond range of damage. | 
Mae CD Pee ee oa lies Ones See a eysheaen hee en 2.87 61 | D1 267 | eee ey. 
ARVO TD Owe Sica vos Nuseareveerate sis yt oy erates Mech oie UyMee ee tea ESTRELA 155 20638 =e eee 
