RESULTS OF INVESTIGATION, TENNESSEE. 15 
is believed that the injured trees to the south can be compared with 
the uninjured trees beyond the range of significant damage in an 
easterly direction with perfect satisfaction, and that the results of 
such a comparison will be just as accurate as though such uninjured 
samples had been taken beyond the smoke range to the south. 
It should be borne in mind that two smelters were involved in the 
above investigation, which were situated so close to one another that it 
was impossible to say which probably was causing the damage. 
Hence a point midway between the two was chosen as the most con- 
venient point from which to reckon all of the distances given in 
Table IT. 
TABLE II.—Sulphur trioxvid in foliage, in ash, and in soils around smelters. 
[Calculated to dry basis. ] 
NORTH OF SMELTERS. 
ae Approximate Ashin Sulphur trioxid— 
ield| Serial a Vo | distance and leaves = 7 = 
Na: wat Description of sample. direction from and ees I ms I il 
| Sineldiexs. needles, |10 leaves.| In ash. n soil. 
x : | Per cent.) Per cent. | Per eel Per cent. 
51 2797 | Foliage, black oak, injured_ 7 miles NNW___ 4.13 0.91 2? ON nes . ae 
60 2806 | -__ (a ee ee ee eel ee, des. 4.62 1.05 22 ee 
ll eg ee | oe a eae NE fees 4.98 1:10") 24 Oe ee 
79 2825 | Foliage, black oak, unin- | 133 miles NNE_. 4.04 41 | EAVES b 38 Rees eS 
jured. 
59 Pale MOCTIE A LANL ON ADE 00 Ole - ot. et I ee | 0.05 
80 Pa eee een tia Wn. (ees eS) os oa Ie en Oe -03 
63 2809 | Foliage, scrub pine, injured_, 64 miles NNE_- 2.83 -87 | 30 init ee 
64 | 2810 |_____ "ik a SR ens oe 5 a 2.34 $5): Sag ees 8 
2) ee Re 2 eee ee eee See if ei Sa 2.99 3... Sea eae 
7 2824 | Foliage, scrub pine, unin- 133 miles NNE_. 2.06 | -36 | ia «rss 
jured. 
67 PAI} NOeR EASA MN OS ine 450522 20 a ee ee ee ee 07 
80 Ae OM MOREA LAG NN 1Bi 2 a Neues SUS te eerie Dees eee ee See .03 
68 2814 Opaee» white pine, in- | 8 miles NNE___ 2.46 -66 | 2682: |" 3-4 
jured. : 
77 2823 | Foliage, white pine, un- | 133 miles NNE_. 1.74 36 | 20-69: [ees se 
injured. 
71 PEO DeHeAL TE NOD GS° 2 2) Se EA ey ee en er -06 
80 eer atay Se EME Ie St a Ss Ss SE (eeceeoul en ea os -03 
69 2815 | Foliage, black oak, injured_| 8 miles NNE___. 5.20 | 95 18.96 ic . 
79 2825 pest black oak, unin- 133 miles NNE_. 4.04 41 10,14 Ae Sere 
jured. 
71 PAS SOU CHE LLIN 100200. S| eee ema Oe Ss 2 ye eS 2 | eee S 06 
80 Sea SCE AL Oe Oe Sot ee oS |S oie ey bt fait yl -03 
100 2846 | Foliage, white pine, in- 84 miles NNE__- 1.97 -56 | DS: ADae ws Fae 
jured. 
rk 2823 Foliage, white pine, un- 133 miles NNE_. 1.74 .36 | ye rie 
injured. 
98 2844 | Foliage, black oak, injured_ 9} miles NNE__- 4.41 aD 17.00 p= ee 
79 2825 | Foliage, black oak, unin- 133 miles NNE_- 4.04 41 ie Se 
| _ jured. 
81 | 2827 Foliage, bla¢koak, injured_ 123 miles N. by 4.55 Bo.) * 1 Sew oe 
: Be 
83 BRIG 1 = 322) oe SE ee See eee Be eed Th ae 4.96 67 | oR pe 
79 2825 Bonne? black oak, unin- 13 miles NNEL- 4.04 41 10:14 [2 SSS 
jured. 
89 PES OEE AT EOS Sitar shee wer A eI ee ee aan) .03 
80 ee CROAG I ING, tides ee tT Ett Sw ee pee Fs 08 
90 2836 | Foliage,scrub pine, injured. 124 miles N. by 3.07 my 16.664 = Ee 
— 
78 2824 | Foliage, scrub pine, unin- 133 miles NNE_. 2.06 36 iT a el 
jured. 
EI ESS SES | ee i er ae -08 
80 eeu) SET Ds 1 Ser: eS ne aS ee nn oeeeeee Oem ee es .03 
92 2838 Pee white pine, in- 12% miles N. by 2.57 49 19.06 | aS eS 
jured. 2 
93 2839) 1 282 "7 (eat ss eS Seer ae “ios. 2.39 50 20:52 ae 
94 ISAG: |< =. do eS ee eee ee. See “1 OG ies ee 2.65 a0 bw spy ea ee 
77 2823 | Foliage, white pine, un- 13} miles NNE_. 1.74 36 ee Ee 
injured. 
