462 
CHEMICAL ANALYSIS. 
It appears that a few months since she had an attack of 
gripes, according to the description given by the man. Did 
not this depend on the passage of some small calculi from the 
kidneys into the bladder, causing severe pain and obstructing 
for the time the passage of the urine? 
One of the calculi taken from the kidneys weighed over two 
drachms, but they were all of small size. 
[The kidney sent by Mr. Vick was greatly increased in 
size and altered in structure. It had evidently been diseased 
for a long time. As stated by iVlr. Vick, in addition to the 
numerous calculi which it contained, many cysts, filled more 
or less with a dirty coloured serous fluid, existed in its 
interior. We could have wished fora more complete history 
of this case, as it might have assisted in determining the 
question as to whether the structural changes of the kidneys 
preceded or not the formation of the calculi. .The general 
conditions of the one sent would rather indicate that such was 
the case. The calculi, on a chemical analysis, were found to 
consist of phosphate of lime, with a little carbonate of lime.] 
CHEMICAL ANALYSIS. 
POISONING BY ABSENIC. 
REPLY TO PROFESSOR TUSON’S LETTER. 
By J. Harrison, V.S, 
Gentlemen, —In the June number of the Veterinarian 
appears a letter from Professor Tuson, of the Royal Veteri¬ 
nary College, censuring the analysis made by my friend, Mr. 
Walton, and myself, in the case of poisoning by arsenic 
recorded by me in the pages of the May number of your 
Journal. In justice to myself and my friend, Mr. Walton, 
I trust to be allowed the privilege of briefly replying to that 
gentleman’s criticisms. After quoting the first paragraph, 
and also the first two preliminary tests employed in my 
report to ascertain if arsenic might be present in the viscera 
submitted, the author of the letter alluded to goes on to 
state, in the first place, “ that when arsenic is absorbed by the 
liver, it combines with albuminoid bodies, and consequently 
becomes insoluble in water (I infer boiling water is meant), 
and that chemists and toxicologists are in the habit of dis¬ 
solving out absorbed arsenic from the tissue of an organ by 
