4 
The variation in the loss is shown in the following figures: 
Loss in graduate, using 4 c. c. of water. 
( 1) 
0. 0366 
( 2) 
.0032 
( 3) 
.0095 
( i) 
. 0098 
( 5) 
.0175 
( 6) 
. 0176 
( 7) 
.0112 
( 8) 
.0124 
( 9) 
.0301 
(10) 
.0077 
(11) 
.0098 
(12) 
.0156 
(13) 
.0220 
(11) 
.0313 
(15) 
.0636 
(16) 
.0247 
(17) 
.0121 
(18) 
.0107 
18) .3154 
. 0192 average. 
Notice that sometimes the loss amounts to six hundredths of a cubic I 
centimeter, that is as much as 1.5 per cent. i 
The loss in the syringe . — The water that was drawn up into the ■ 
syringe is now emptied into another carefully weighed graduate and i 
the added weight determined. The difference gives the total loss, and | 
the difference between the total loss and the loss in the graduate gives !, 
the loss in the syringe. I 
As much as possible of the contents of the syringe is pressed out by j 
means of an air cushion behind the column of water. However, as 
will be seen b}" the figures, an appreciable amount remains behind; 
especially if the syringe has a shoulder or a poor packing presenting ‘ 
a large wetted surface. | 
The following’ figures give the result of eighteen weighings to de- 
termine the loss in the S 3 U’inge: ; 
( 1) 
Loss in the 
syringe. 
0. 0219 
( 2) 
.0097 
( 3) 
. 0295 
( 4) 
.0307 
( 5) 
.0147 
A special syringe, 
A special s\u’inge, 
A special syringe, 
A special syringe, 
A special sj^ringe, 
‘‘Sub Q” joint, no shoulder. 
“Sub Q” joint, no shoulder. 
“Sub Q” joint, no shoulder. 
“Sub Q” joint, no shoulder. 
“Sub Q” joint, no shoulder. 
I 
If 
