exxviil Proceedings of the Asiatic Soc. of Bengal. [N.S., XVII, 
e best ever for hydrolysis are an acid strength of from 0: 35 
per Btn to 0°5 and a ratio of acid to fibre not exceeding 6 per 
cent of the weight ny “he fibre. A larger proportion of acid tends to 
destroy the fibre and to produce non-stgars which interfere with the 
subsequen mie operation of fermentatio 
ield was obtain ae in 15 to 30 “fished but there was 
ot iriod 3 ea when the pate was prolonged to 2 hou The appara- 
tus available did not permit of the one. loss bitbed beyond 65 Ib. to 
the square inch. Published results (cf. Simonsen and Kreisman, Zeit 
Angew Chem., 1898, ee, .E. Chem. 1914) dhidtiontes that the yield of sugar 
jemeokyae up to o 73 atmospheres, so that the present experiments may be 
looked upon as giving yields below the maximum possible. 
est results are obtained loser Sn material is ted u 
rapidly as possible to the required temperature and as qui Benger S possi Sible 
cooled, so as to minimise the ron effect of the hydrolysing acid 
on the fibr 
The highest aay percentage * sugar recovered ee se per ote wee 
used, 
pod Ib. a his percentage ab per 
ce sant "iad about 30 ter acta is ® produced 5 the 5 earn 
oF is nonfibrous Aganral tissue of the m 
saccharine solution ne ape was snot pag ped fermented Dy 
itself, even after siesiboasion with lime. How a large perce ntage of 
aps ermented when diluted a an fetoary fermentable solution 
o othe 
conditions of fermentation are being carefully investigated, 
a: cmicall and bacteriologically 
The obtained under Frsdeebin conditions of hydrolysis of 
megasse can be pulped by heating under r pressure with caustic soda and 
then form quite satisfactory material for making the cheaper and thicker 
grades of paper and for mixing with better grades of pulp, e.g. from 
linen and cotton rags. 
Some experiments on ene use of antiseptics in connection 
with the manufacture of glue and gelatine —By GrL- 
BERT J. FowLer and K. C. Srinivasan. 
The experiments referred to in the present abstract were undertaken 
with the view of finding a suitable antiseptic for glue and epilation aot 
tions which may be liable to contamination in the course of m 
facturing process. 
_ Such an antiseptic besides being cheap and inoffensive must be effi- 
elent in Sagan — will not at the same time affect the properties 
of the ag e or gelatin 
wal met: thod of experiment was to inoculate a number of 
tubes of gelatine with a culture of a  liquefying —— and to add toa 
series of inoculated tubes u increasing quantities of the varbsegy oi 
under investigation. The tubes were kept agp the day at room te 
perature (30-32°C.) allowed to set over ni cold incubator at 20°C. 
— their appearance and pecteniany their order si elting noted the 
é moi 
_ The following antiseptic Aad were used, Silver ieiocls acid, sulphu- 
ric acid, sire dioxide, phenol and formalin. 
Of these sulphur dioxide offered the most adv vantages. It was found 
that an addition of sulphur dioxid e giving an acid reaction 4 juohoeaye to 
2 N/8(x 0:03) inhibited the activity of the bacteria without any dele- 
ious effect on the gelatine. ste ly ill Lye ba pea: 0°75 se of sul- 
phur to be burnt for every kilo of t pr 
Besides its antiseptic effect, valptar dioxide al the further property 
of acting as a clarifying and decolourisi ourising agen 
