MISCELLANY. 
351 
the residue lixiviated. Sulplinric acid was added to the solution, but not 
to complete saturation ; after which the sulphate of soda was crystallized, 
and the mother waters evaporated to dryness. The residuum was placed 
in a flask with a small quantity of water, and concentrated sulphuric acid 
was added to it, with a little peroxide of manganese, when a piece of 
paper, covered with starch and affixed to the stopper, was coloured of a 
beautiful blue. Another portion of the residuum, treated with starch and 
nitric acid, also afforded blue iodide of starch. 
M. Hansman, of Atens, in Oldenburg, obtained the same result by 
employing a method a little different, without a knowledge of that of M. 
Hopfer, of Orme. 
Three drachms of clear brown oil of the liver of cod were saponified 
by a solution of caustic potassa; the soap was carbonized, and the carbona- 
ceous residue lixiviated ; the solution was filtered, after there had been 
added a small quantity of carbonate of ammonia, in order to transform the 
excess of caustic potassa into a carbonate of potassa; it was then evapo- 
rated to dryness. The saline residuum was repeatedly treated with hot 
alcohol, and the alcohol evaporated. A very small quantity of yellowish- 
white residuum was thus obtained, which attracted moisture from the 
atmosphere, and had a slight odour of iodine. This saline residuum was 
placed in a glass tube, very much contracted at its anterior extremity, 
such a one as is recommended by M. Wackenroder, for this purpose; (see 
his Introduction to the Analyse Chemique Qualiquative, p. 369;) then 
fresh starch was placed in the superior part of the tube. When concen- 
trated sulphuric acid was poured upon it, effervescence took place; and by 
heating it, there were disengaged violet vapours, which coloured the 
starch of a deep blue. The examination of another sort of the oil, which 
was of a clearer yellow, afforded the same result, but less marked. A 
third sort, of a deep brown, treated in the same manner, appeared, on the 
contrary, to contain more iodine than the first. 
These experiments not only confirm the discovery of M. Hopfer, of 
Orme, but moreover appear to demonstrate, that the deep coloured oil 
contains a little more iodine than the light coloured. Moreover, the pro- 
portion of this substance in it is always very small, and a quantitative 
analysis cannot be without interest. 
This is the first instance of the presence of iodine in a fatty substance. 
M. Wackenroder thinks that it must come from the sea water, or else 
from the substances upon which the animal feeds. A. G. V. 
Journal de Pharmacie. 
Method of preserving vegetable juices and infusions; proposed by M. Fay- 
ARD. — MM. Guibourt & Planche, in a report to the Societe de Pharmacie, 
recommend this plan to the attention of pharmaceutists; it consists "in 
introducing the fluids into bottles, and closing them by means of a lamina 
