Hausmann, W., makes a contribution to our knowledge of immu- 
nity to arsenic and reports a series of experiments on dogs. — Biocliem. 
Centraibl., Leipz. 1906-07, v. 5. p. 628. 
Conzen (Xeur. Centrbl. Xo. 1, 2, Jan., 1906) describes a case of 
arsenical neuritis of "both hands interesting in that all general symp- 
toms from the side of the intestinal tract and the nerve system were 
lacking and the local disorder appeared only where the poison had 
acted, on the hands. The patient had for eight weeks smeared with 
his fingers an arsenic solution on fur-covered buttons. There was a 
local absorption and percutaneous action of the poison through the 
uninjured cutis. — Abstr., Ibid ., v. 5, p. 204. 
Osborne, Oliver T., thinks the explanation of the action of arsenic 
in chlorosis is due to its stimulation of the thyroid gland. — J. Am. 
M. Ass., 1906, v. 47, p. 1476. 
Shurly, B. B., advises the hypodermic use of one of the arsenates 
in the anaemia associated with the pretubercular stage. — Ibid., v. 46, 
p. 1835. 
Hofmann, Johannes, reports observations on the influence of ar- 
senious acid on the number of red and white blood corpuscles. He 
injected 1 and 2 per cent solutions of sodium arsenate, and found the 
number of ervthrocvtes to be increased in all cases. The number 
of leucocytes is reduced immediately after the injection, and this is 
followed by a hyperleucocytosis with nontoxic or slowly acting toxic 
doses. "With rapidly acting, large doses the leucocytes are not regen- 
erated. — Biocliem. Centraibl., Leipz., 1906-7, v. 5, p. 867. 
Doyen and Morel report experiments to determine the resistance of 
the dog to arsenic, and assert that crystalline arsenious acid is not 
absorbed from the gastro-intestinal canal of the dog. — Ibid., p. 867. 
Coley 7 , T. L. (Brit. M. J., Xov. 34) states that arsenic may be of 
value in certain cases of arteriosclerosis of plethoric type, but more 
for its general than for its depressant action on the blood pressure. — 
J. Am. M. Ass., 1906, v. 4*7, p. 2124. 
Bulldey, L. Duncan, states that many consider that arsenic is about 
the only remedy for psoriasis. He states that it often fails to control 
the disease, but it often controls the eruption, its mode of action not 
being fully understood. It may augment the disease. — Ibid., v. 47, 
p. 1634. 
Rhodes, Frederick A., states that he has used arsenic internally, as 
well as nearly every other drug in the Pharmacopoeia, in the treat- 
ment of psoriasis in his own person, with no other effect than to alle- 
viate the symptoms to some slight extent. — Ibid., v. 47, p. 1636. 
Gottlieil, William S.. states that he uses sodium arseniate hypo- 
dermically in the treatment of psoriasis, and that he has found tar 
used externally is as useful as chrysarobin. — Ibid., v. 47, pp. 1636. 
1637. 
