Physics and Chemistry. 147 
also Soon pate by finding ee peptone b treatment with de- 
hydra 
precipitable albumen.— Ber. Berl Chem. Ges., xiv, gisky oa 
the coma of Allantoin in Vegetables. _The young 
dices vie leaves of trees contain, as is well known, asparagin 
Believing that other nitrogenous bodies — to be simultane- 
ously formed, Scuutze and Barsiert have examined the freshly 
opened buds of the plane tree (Platanus cpieritalis) for;these sub- 
young , dried, were extracted with hot water, 
the extract decomposed with lead acetate, the filtrate freed from 
lead and evaporated. In 12 to 24 hours, crystals of the new 
body separated, mixed with asparagin. The latter may be sepa- 
rated by fractional crystallization or by converting it into the 
comparatively insoluble copper compound. The filtrate from this 
after removing the copper by H,S, yields small, brilliant i dea 
difficultly soluble in cold water r, and givin 
mercury and silver reactions of allantoin. Analysis gave pres 
formula O,H,N ,O, The occurrence of this uric acid derivative in 
r. Be o: seen 
ulum mo 
disturbing influence of resonators. ifferent forms of sinusoidal 
curves representing pendulum movements in various phases are 
cut upon the edge of thin iron rings which are arranged in a con- 
ical form u upon an axle. ese rings can be rotated in front of 
various blast pipes from a wind bellows and the blast pipes can 
directed either upon the summit of the waves or between the 
elevations. Discussions of the results afforded by this kn 
are given.—Ann. der Physik und Chemie, No. 11, p. 369. 3 
11, W. Stemens apon the ihe namo- -Electric ‘Machine * This 
in machine is esis ‘and it is maintained that the so- 
called Foucault currents are not the only cause of the heat which 
is de veloped in rotating iron armatures. these armatures 
are divided into thin plates separated by inviting media, in order 
to break up the currents of induction, the iron was still very 
