.ct. proteids, and yielded 15.62 p.ct. furfural.

_Acid Hydrolysis._--The product was boiled 30 mins. with dilute acid
(1.25 p.ct. H_{2}SO_{4}), and the solution boiled until the Fehling test
showed no further increase of monoses. At the limit the reducing power
of the dissolved carbohydrates was 91.3 p.ct., that of dextrose.
Converted into osazones the analysis showed them to be _pure
pentosazones_. The _hemicellulose_ of wheat is, therefore, according to
the author, _pure pentosane_.

_Residue._--This was a lignocellulose yielding 11.5 p.ct. furfural. It
was subjected to a series of treatments with ferric ferricyanide, and
the proportion of Prussian blue fixed was determined by increase of
weight, viz. from 10 p.ct. to 47 p.ct. according to the conditions. The
results confirmed those of Cross and Bevan first obtained with the
typical lignocellulose (jute).

_Chlorination._-The residue was boiled with dilute alkali, washed, and
exposed to chlorine gas. The resulting lignone chloride was isolated by
solution in alcohol, &c. It yielded 26.7 p.ct. Cl on analysis. In this
and its properties it appeared to be identical with the product isolated
by Cross and Bevan from jute, with the empirical formula
C_{19}H_{18}Cl_{4}O_{9}.

_Cellulose_ was isolated from the residue by three of the well-known
methods, and the following comparative numbers are noteworthy:

_________________________________________________________________________
| | | | |
| | F. Schulze | Lange | Cross and |
| Method | Dil. HNO_{3} | Fusion KOH | Bevan |
| | KClO_{3} | | Chlorine, &c. |
|_____________________________|______________|____________|_______________|
| | | | |
| Cellulose p.ct. obtained | 66.0 | 39.3-43.1 | 66.5 |
| Furfural p.ct. of cellulose | 7.0 | 3.96 | 5.62 |
| Residual nitrogen | 0.22 | 0.03 | 0.00 |
| Ferricyanide reaction, | | | |
| Prussian blue fixed | 6.04 | 0.89 | 0.92 |
|_____________________________|______________|____________|_______________|

The author remarks: 'It is evident no one feature can be urged as a
criterion in judging betwee