TABLE IV ( continued } ) 
T = 29° C. Sp. Gy. = 0.9195. 
Number 
of 
Dropsi 
Time 
between fall 
of first 
but one and last 
Drop. 
Weight 
of 
Drops. 
(Number 
of 
Drops. 
Time 
between fall 
of first 
but one and last 
.Drop. 
Weight 
of 
Drops. 
60 
120” 
3.5916 
60 
300” 
3.2813 
60 
120 
3.5926 
60 
300 
3.281 1 
60 
180 
3.4243 
60 
300 
3.2811 
60 
180 
3.4263 
20 
240 
1.0400 
60 
180 
3.4268 
20 
240 
1.0402 
60 
180 
3.4278 
20 
240 
1.0402 
60 
240 
3.3379 
20 
240 
1.0399 
60 
240 
3.3348 
. . . 
• • • 
60 
240 
3.3358 
... 
... 
• • • 
60 
240 
3.3371 
• • • 
• • • 
60 
300 
3.2814 
... 
... 
From this Table the following Table V is derived. Column 
I shows gt. the growth time of the drops, column II shows 
the corresponding mean weights of the single drops. Column 
III shows the rate of delivery per second in grammes. It 
was found impossible to arrest an exact number of drops when 
the rate was faster than 60 drops in 25”. A fen* rather dis- 
cordant results got at the rate of 60 drops in 20” gave a mean 
of 5.5584, tending to show that at this high rate the drops 
were considerably larger than at any lower rate. 
Towards the end of the Table at the slower rates the error 
of time becomes so magnified, the least alteration in the ad- 
justment of the instrument makes such a sensible alteration 
in the entire time lapse that it is nearly impossible to 
avoid an error of less than 0”.5 on the whole time of several 
minutes. Although the time error thus becomes palpable it 
remains nevertheless relatively to the whole time lapse, as im- 
materially small as are the inappreciable errors of the swifter 
rates of dropping. 
