GRAIN-DUST EXPLOSIONS. 
S3 
Fire in A. Mill shut 
down. 
Mill started again. In- 
duction coil with \- 
inch spark used. 
Used induction coil. 5 
attempts. 
Small pieces of flint. 4 
attempts. 
Small pieces of flint. G 
attempts. 
■ DC 
: * 
Smoke and 
burned par- 
ticles. 
do 
c 
c 
- 
__: 
: ■*£ 
: ° & 
co 
i 
- 
! t, 
a | 
) 
c 
: m ^ 
o 5 
A u 
w ft, 
C3g 
O C3 
3 
o 
y 
c „_ c 
: 2 
z 
) 
1 
> 
- 
5 
^ s 
Eh £ 
o 
--• 
c 
c 
- 
Xfl -A 
<S S 
"a 
w ft 
c3 g 
« C3 
2 large flashes . 
2 flashes 
Small flash. . . . 
do 
do 
00 
b 
o 
c 
O 
12 explosions 
(4 with 
damper on). 
o o 
: : d 
: : ° 
c c 
-- 
c 
No. 2 feed dust 
No. 2 feed dust (2 
quarts). 
No. 3 elevator dust . . 
do 
do 
o >• 
"1 
3© h 
tcJC 
6 
c3 
© 
E 
d 
c 
,2 
CO 
6 
V. 
ft 
2 
o 
CO 
t-- OC O © r-l !N 
rH OC 
c4 <n" 
c 
~5 
8 
cq 
s 
cq 
02 
>> 
a 
ft c 
