Chemistry and Physics. 63 
SCIENTIFIC INTELLIGENCE. 
I. CHEMISTRY AND Puysics. 
1. Tests for certain Organic Fluids.—In his investigations con- 
nected with the ammonia process of water-analysis, WANKLYN 
ammonia obtained characteristic, but the relative amounts yielded 
by the two processes given are so also, This fact, Wanklyn 
i be of : ; Segre: 
by Nessler’s test, By this process, it is possible to distinguish 
Satisfactorily between a spot of milk and one of white of egg upon 
ee handkerchief.—Jour. Chem. Soc., II, x, 645, August, 
a F 
G. F. B. 
he Transformation-products of Starch.—The results of 
the sugar. For the preparation of the former, 100 grams air- 
dried starch were stirred up with 300 c.c. of water at 40° and the 
iodine, it was boiled, cooled, filtered, evaporated to 300 c.c., and 
Precipitated by alcohol. Similar quantities of paste were trans- 
‘ormed i 
Waxy mass, even after 30 precipitations, still retained the power 
of reducing cupric oxide to the extent of 8 or 9 per cent. of dex- 
ose. To eliminate this reducing body, the dextrin solution was 
submitted to fermentation, and again precipitated by alcohol, three 
or four times. It was finally washed wit alcohol, t : L 
filter, pressed in bibulous paper, and dried over sulphuric acid. 
Eight preparations made by these general methods, modifying ° 
