Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1908-03-31

witness through n line Of examination
which dealt u great deal with tompern-
lures In the bag house. witness testi-
fed that the hand roasters. which were
abandoned Because they made TOO nuch
sulphuric acid, which IN turn ate inc
bugs OF the bag house. We're operated
nj temperature OF 3OI degrees g..
which * a great deal hotter than the
new converter furnaces, the latter Kind
not being To the temperature at which
siilphutic acid ceases to be liquid and
evaporates as u gas. The witness was
asked many questions tending TO snow
that this merely meant that the new
roasters did away with the problem OF
sulphuric acid, by allowing It to pass
of as sulphur dioxide. instead Of heat
Ing IL TO Il temperature where 1t would
absorb more oxygen and become SUI
phuric acid, thus attacking the bags
OF the bag house
EXPERIMENTS an FOLIAGE,
prof. Ebaugh was the second witness
nut on today and he was asked 70
translate treat ise on sulphur dloNlue'
concerning its power to do damage
He read the results OF an experiment
which showed that sulphur dloNide IN
troduced into atmosphere In Whlch
certain plants, some sprinkled win VIZ
ter, ana some Kept dry, took their nour-
ishment. developed the fact that lho
sprinkled plants suffered TN q shortet
time than those Kept dry, ana thnt
needles on forest trees had Drowned III
about go days while sprinhed plants
had Drowned in 10 days.
The action of the gas was explained
az length 1t was held that IL an
sorbed through the leaves, whcfe II
disturbs the chemical composition OF
the plant cells causing the tannin 10
At. .t,tfI ma a V1Efa mn q
TO be affected Short exposures to the
gas result in holes being eaten through
the leaves and black blntches TO form
on the -twlgs Longer exposure results
I'm the death Of twigs and leaves. ana
still longer exposure IN stopping OF the
trees growth and finally In It's oeath'
AS a leaf absorbs more air in the sun
light Than IN the dark, and on tne
warm days than cold days, the damage
from smelter smoke is most on warm
days ana IN the sunlight.
CASE IN POINT.
While trying to get Prof. Tlbaugh
TO admit that It was highly improb-
able that the gas would settle IN one
spot lnng enough Ia do amy damage
on account of the varying winds,
Judge Dioksen secured this statement
from him:
an the summer of 1905 there was a
perind OF a week when south winds
and steady rainfall caused the gas 70
sweep a wide path in which 1t did
more destruction than in all the rest
OF the year combined. The gas seems
to form suIphurtc acid within the plant
cell by absorbing oxygen from the pro-
toplasmlc mass, or other cell ingreul-
ents.'
The attempt to prove. however that
the volume OF sulphur gas, when zoos
ed upon open fields, and with vary
ing wind currents could not settle IN
one place long enough to damage, now
ever was the chief one the smolter ht-
torneys were developing this morning'
and they put on another witness 10
bring out this Item.
The witness was Chemist Benedict or
the u. s. Smeltor He testified that LOT
1905 and 1905, he had made tables OF
the direction of wind currents from an
eight points OF the compass. In leOo
"A per cent OF the winds had blown
northeast and 1924 per cent has blown
southwest, In 1905 6.52 per cent MAD
blown south, and SO per cent north.
At the conclusion of his testimony the
case went over until 2 o'clock, when
the nature of sulphur dioxide Will be
further investigated, to prove II harm
lessness or power to do evil. according
TO the desires of the respective SIDES