174 
MISCELLANY. 
and died instantly. The body was immediately opened : all the blood in 
the cavity of the thorax was found coagulated ; the heart was very much 
dilated, and its right half continued to pulsate after the left had ceased. 
The blood in the brain was partially, in the abdomen not at all, coagulated. 
II. Experiments with the chromate of potash. These experiments were 
conducted in a similar way to those already related ; and the effects of 
the chromate resemble very nearly those of the bichromate. Perhaps the 
latter salt is fully more powerful than the former; but the details of the 
experiments are so much like those we have already given, that we think 
it needless to enter more fully upon them. 
III. Experiments with the protoxide of chromium. These experiments 
merely prove that the protoxide is an inert powder. 
IV. Experiments vrith substances which it was conceived might prove to be 
antidotes. These experiments consisted in first poisoning the animals with 
the chromate or bichromate of potash, and then giving carbonate of potash, 
sulphate of iron, or tincture of galls, as antidotes. These substances, 
however, did not in any way neutralize the effects of the poison, and we 
need not, therefore, detail the experiments. 
Medicinische Zeitung, Nos. 24 and 25. 1838. 
Granville' 's Lotion, — Each kind of lotion consists of three ingredients. 
1st. The strongest liquor of ammonia, A; 
2d. Distilled spirit of rosemary, B ; 
3d. Spirit of camphor, C. 
Preliminary steps, — A. Saturate a given quantity of distilled water, 
contained in a glass receiver surrounded by ice, with ammoniacal gas, 
obtained in the usual way from the mixture of equal parts of hydrochlorate 
of ammonia and recently slaked lime, both reduced to a fine powder. The 
water may be made to take up nearly 800 times its bulk of ammoniated 
gas under the circumstances described ; its specific gravity will then be 
about 872, and 100 parts of it will contain thirty-three parts of real ammonia, 
according to Sir H. Davy's tables. This solution of ammonia will, there- 
fore, be more than three times the strength of the liquor ammoniae of the 
Pharmacopoeia of London, 100 parts of which, at a specific gravity of 960, 
contains only ten parts of real ammonia. I have, therefore, called mine 
" liquor ammoniae fortissimus." 
B. Take two pounds of the tips or small leaves of fresh rosemary, and 
eight pints of alcohol ; leave the whole in infusion for twenty-four hours 
in a well covered vessel, and after adding a sufficient quantity of water as 
will just prevent the empyreumatic smell, distil over seven pints. The 
Pharmacopoeia of London directs the essential oil of rosemary to be distilled 
instead with rectified spirit. Such a preparation I found unsuited for my 
purpose. 
C. To four ounces of pure camphor add two pints of alcohol, so as to 
