632 
NEW TEST FOR GRAPE-SUGAR. 
itself is discharged dead, in pieces. After giving the powder 
for three weeks, it should be followed by a purgative consist- 
ing of one ounce of castor-oil and ten grains of the extract of 
filix . — Berlin Med . Zeit. 
SULPHATE OE ATROPINE IN SCROEULOUS OPHTHALMIA. 
Dr. Grosmann has found that the sulphate of atropine is 
of remarkable efficacy in the blepharospasm which is almost 
always present in scrofulous conjunctivitis, keratiasis, and 
blepharitis. Amelioration follows the second, if not the first 
application. The action of the remedy does not seem to be 
confined to assuaging the hyperaesthesis of the fifth pair, the 
motor nerves of the region becoming partially paralysed. — • 
Presse Beige . 
IODATE OE POTASH. 
Messrs. Demarquay and Custin consider that the 
action of this salt is more powerful than that of the chlorate 
of the same base, and that it has yielded excellent results 
where the chlorate of potash had failed. The dose varies 
from five to twenty-two grains, and it has been used in 
diphtheritis, mercurial and gangrenous stomatitis, &c. From 
M. Millon’s directions, the salt may be obtained as follows: 
One part of iodine and one of chlorate of potash are 
brought in contact with six parts of boiling water, acidulated 
with a few drops of nitric acid. When chlorine ceases to be 
given off, a concentrated solution of chloride of barium is 
added to the liquor. The washed iodate of barytes is then 
decomposed by sulphuric acid, the sulphate of barytes is 
separated by filtration, and the fluid is slowly evaporated. 
The crystals of iodic acid are then washed with distilled water, 
redissolved in boiling distilled water, and the solution 
saturated with bicarbonate of potash. A great portion of 
the salt is deposited in little crystals on cooling. — Lancet . 
NEW TEST EOR GRAPE-SUGAR. 
This process is especially applicable to the analysis of 
diabetic urine. After the urine to be tested has been intro- 
