96 Messrs. Johnson and Allen 
= a of chlorine was conducted in the usual 
on a rs by Becker and Sons of Brooklyn, N. Y., w 
with an ordinary load indicates ,;th of a milligramme aie 
great decision and perfect constan ney. 
The data of our determinations are as follows: 
I, 1:8871 grms. Cs Cl ae at Ag. Cl=" Reaigs Cl, and ¢ 4505 Os. 
Il. 2°1295 6 sti 64 « 68165 “ 
II. 2: “ate ye odes - sh Aig — rape ils ™ ‘ 18827 * 
IV. 1:56165 “ ot eee. Se eEeOR - 1:23272 “ 
The percentage composition of chlorid of cesium and the 
equivalents deduced from the above figures are as follows ; sil- 
ver being considered =107°94 and chlorine =35-46, Stas: 
Per cent of Equiv. of Cs. 
' ¢l Cs 
1 21°044 78-956 183°050 Allen. 
2. 21°031 78:969 1383°150 _ Johnson. 
3. 21:048 78957 133:054 Johnson. 
4 21-063 78937 182°892 Allen 
Average, 21-0 045 78-955 133-036 
We may sre 3 assume the round number, 133, as the 
equivalent of czsi 
Calculated by this equivalent the formula of bitartrate of 
exsium corresponds well with the results of experiment. 
mentioned in the paper referred to, the analyses of this salt fur- 
nished the following data: 
: 786 grm. water, and 
hs CATE Ee ere ice 0° ip “carbonic acid. 
: 01 grm. water, and 
II.  0°5966 grm. gave} Os 0370 <*  ceehonis acd. 
II. 1-°3086 grm. gave 0°7708 grm. chlorid of cesium. 
In two other estimations since made— 
IV. 2:0347 grm. gave 1:206 grm. chlorid of cesium. 
fF 8271 * 10857 be . 
Calculated Found. 
f Os==1 23°35 Cs==188° : 1, Il. Iv. ¥. 
C, 4800 17°62 « && 17-02 1600 3702 (ecu co lee 
is 5°00 1 0° & 31 1 by 88 a -eme ore 
88:00 32°31 88° 2 heer eres aeoe woe eee 
30 13135 48 Cs0 141° 50°00 PED TED aop0 46-61 4078 
27235 10000 282° 100°00. 
