forming table XVII ; on tins account and because the deliver- 
ing solid was quite different in shape and gt.—Z” no im- 
mediate comparison can be made between Tables XA III and 
XVII. Correction is made for meniscus. 
TABLE XVIII. 
gt. 
= 2” — T 
= 21°. 
2 C. 
286+1 
251 + 1 
228 + 1 
204+1 
102 + 1 minimum 
286+1 
351 + 1 
230 + 1 
204+1 
103 + 1 
286+1 
250+1 
229+1 
206 + 1 
102+1 
286 
250.7 
090 
204.7 
102.7 
.287 
251.7 
230 
205.7 
103.7 
We gather from 
this table 
a law 
quite similar to that 
deduced from the measurement of the size of the dovvnvvavd 
drops of water through these same liquids ; it is as follows : 
The drop size of any mixture of two liquids A and B 
dropping upwards through a third liquid C is intermediate 
between the drop size of A through C and that of B through 
A. 
C and the greater proportion of ^ there is in the mixture 
the more nearly does the drop size of the mixture approach to 
the drop size of alone. 
It is remarkable that supplementary drops are formed in 
the cases immediately considered, just as in the case of water 
dropping through these same liquids. But the supplementary 
drops of benzol and turpentol through water bear a much 
smaller ratio to the main drops than do those of water through 
benzol and turpentol to their maindrops. .J udging only from 
the equality in their rate of ascent through the measuring 
tube, all these supplementary drops are of very exactly the same 
size. The supplementary drops were not further examined, but 
were always collected and measured with the main drops. 
Viewed as a means of quantitative chemical analysis, the 
measurement of the drop size of liquids which drop up through 
water is yet more sensitive than that of the drop sizes of water 
falling downwards through the liquids. Thus, from Table 
