306 Scientific Intelligence. 
5. On the use of Stannous Chloride in the analysis of Nitro- 
compounds,—Limpricut, noticing the facility with which an acid 
solution of stannous chloride reduced nitro-compounds, made a 
series of experiments to ascertain whether the reaction could not 
made use of to 
stannous chloride solution of known strength, the nett (tt) 
0 oO : 
SnCi,+(H,0), B titrition the quantity of stannous chloride 
an 
Stototte salt in a liter of water; (3) starch solution diluted and 
="0059 gr. Sn, =0-0007666 gr. NO,; (5) Permanganate solution, 
made and titered as usual. In the analysis, 0°2 h 
m 
10 c.c. of the tin solution, and warmed. After cooling the flask 
is filled to the mark with water, 10 ¢.c. is removed with a pipette, 
aced in a er, dil mixed with the soda solution until 
the precipitate at first produced is re-dissolved, and after adding 
some starch solution, titered with the iodine solution until the 
blue becomes permanent, ‘numerous results given show the 
panne to be accurate.—Ber. Berl. Chem. Ges., xi, 35, Jan 
1 G. ¥ 
B. 
6. On a so-called Catalytic action of Carbon Disulphide. 
