SAND    AND    LIMESTONE    FOR    GLASS    MAKING. 
in  the  Mississippi  basin. 
457 
Constituent. 
Iron  oxide 
(Fe203). 
Alumina 
(AI2O3). 
Other. 
Total. 
Authority. 
0. 
Trace. 
30 
0.051 
.051 
.  283 
.03 
99.  88 
99.951 
99.951 
99.971 
loo.oo 
99.9944 
100.00 
Prof.  R.  E.  Lyons,  Indiana  University,  Bloom- 
ington,  Ind. 
R.  W.  Hunt  &  Co.,  Chicago,  111. 
Cary  A.  Moore,  Chicago,  III. 
( >perators  of  quarry. 
Regis  Chauvenet  A:  Bro.,  St.  Louis,  Mo. 
John  F.  Wixford   St.  Louis  Mo 
.0903 
.0014 
(H20),  0.  L54.. 
Regis  Chauvenet  &  Bro.,  St.  Louis,  Mo. 
'mainly  from  middle  Mississippi  basin. 
Angularitj . 
A  few  grains. 
1  per  cent 
A  few  grains. 
Small  lumps  only. 
Fine  lumps  only. . 
Very  little 
....do 
None 
....do 
Very  little 
....do 
....do 
None 
Very  little 
do Fine  lumps  only. 
None I  Small  lumps  on  1\ 
do do. 
A  little  of  finest  grain ! 
None .    Small  lumps 
Sieve  tests  (percentages  are  approximate). 
Larger  than  20  mesh. 
I 'asses        Passes       Passes        P 
20  mesh.    40  mesh.    GO  mesh.    100  mesh. 
Very  little 
....do.... 
None.,  .s. . 
90  per  cent 
.do. 
Less  than  1  per  cent 
100 
99+ 
99 
99  + 
99  + 
100 
100 
100 
100 
100 
100 
100 
100 
100 
100 
99  + 
100 
100 
inn 
85 
(i 
23 
45 
90 
82 
90 
92 
s.s 
85 
00 
00 
90 
85 
23 
