Am.  Jour.  Pharm. 
August,  1920. 
Glass  for  Manufacture  of  Ampuls. 
585 
The  results  yielded  by  the  application  of  the  "phenolphthalein 
alkalinity,"  "loss  to  water"  and  * 'vulnerability  to  alkaline  fluids" 
tests  to  some  samples  of  glass  tubing,  bottles,  Erlenmeyer  flasks, 
test  tubes  and  beakers  are  herewith  appended  as  a  matter  of  com- 
parison and  of  interest : 
Sample. 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Tubing 
Bottle 
Bottle 
Bottle 
Erlenmayer 
flask 
Test  tubes 
Beaker 
Beaker 
Beaker 
Beaker 
Color. 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Amber 
Amber 
Amber 
Amber 
Amber 
Amber 
Amber 
Amber 
Amber 
Amber 
Amber 
Blue 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
Flint 
' '  Phenolphthalein 
Alkalinity"  test. 
Undeterminable  trace 
Undeterminable  trace 
Undeterminable  trace 
Undeterminable  trace 
Undeterminable  trace 
Undeterminable  trace 
Undeterminable  trace 
Undeterminable  trace 
Undeterminable  trace 
' '  Vulnerability 
"Loss  to 
to  Alkaline 
Water"  test. 
Fluids"  test. 
Unweighable 
21.0  Mgm. 
1.5  Mgm. 
Unweighable 
30.0  Mgm. 
1 . 17  Mgm. 
Unweighable 
24  Mgm. 
Unweighable 
8.25  Mgm. 
1 . 2  Mgm. 
4  .0  Mgm. 
22  .5  Mgm. 
2.5  Mgm. 
43 . 5  Mgm. 
0.62  Mgm. 

2 . 5  Mgm. 
31 .5  Mgm. 
3  .0  Mgm. 
27.5  Mgm. 
3 . 1  Mgm. 
3.5  Mgm. 
24.0  Mgm. 
Unweighable 
9  .25  Mgm. 
Unweighable 
6.5  Mgm. 
Unweighable 
20.0  Mgm. 
Unweighable 
17  .5  Mgm. 
Unweighable 
2 . 65  Mgm. 
Unweighable 
2  .0  Mgm. 
8.0  Mgm. 
56.5  Mgm. 
1 . 5  Mgm. 
22  .5  Mgm. 
3.0  Mgm. 
27 . 5  Mgm. 
4.0  Mgm. 
19.0  Mgm. 
5.0  Mgm. 
12  .5  Mgm. 
8.0  Mgm. 
25  .0  Mgm. 
10. 0  Mgm. 
57-5  Mgm. 
Unweighable 
7.5  Mgm. 
Unweighable 
7 . 8  Mgm. 
0.15  Mgm. 
1 .8  Mgm. 
0.45  Mgm. 
0.59  Mgm. 
0.39  Mgm. 
0.0107  Mgm. 
0.28  Mgm. 
3.0  Mgm. 
Unweighable 
3.3  Mgm. 
Unweighable 
18  .5  Mgm. 
Unweighable 
13  .0  Mgm. 
