4 
The variation in the loss is shown in the followiiio’ fio'iires: 
Loss in graduate, using 4 c. c. of water. 
( 1) 
0. 0366 
( 2) 
. 0032 
( 3) 
. 0095 
( L 
.0098 
( 5) 
.0175 
( 6) 
.0176 
( T) 
.0112 
( 8) 
.0124 
( 9) 
.0301 
(10) 
. 0077 
(11) 
. 0098 
(12) 
. 0156 
(13) 
. 0220 
(11) 
.0313 
(15) 
.0636 
(16) 
. 0247 
(11) 
.0121 
(18) 
.0107 
18) .3151: 
.0192 averao’e. 
Notice that sometimes the loss amounts to six hundredths of a cubic 
centimeter, that is as much as 1.5 per cent. 
The loss in the syringe . — The water that was drawn up into the 
syringe is now emptied into another carefully weighed graduate and 
the added weight determined. The difference gives the total loss, and 
the difference between the total loss and the loss in the oTaduate gives, 
the loss in the syringe. 
As much as possible of the contents of the syringe is pressed out by 
means of an air cushion behind the column of water. However, as 
will be seen by 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 weighing's to de- 
termine the loss in the S}U’inge: 
Loss iu the 
syriuge. 
( 1) 0. 0219 A special syringe, ‘‘Sub Q*’ joint, no shoulder. 
( 2) . 0097 A special syringe, “Sub Q” joint, no shoulder. 
( 3) . 0295 A special syringe, “ Sub Q” joint, no shoulder. 
( 4) . 0307 A special syringe, “Sub Q'’ joint, no shoulder. 
( 5) . 0147 A special syringe, “Sub Q*’ joint, no shoulder. 
