126 
he reviews the several methods proposed and outlines a process for 
further purifying the acid. — Analyst, London, 1906, v. 31, pp. 37-38. 
Thorne and Jeffers discuss the purification of hydrochloric acid 
from arsenic. — Ibicl.. v. 31. pp. 101-103. 
Luther and MacDougall discuss the reaction between chloric and 
hydrochloric acids and the influence of the liberated chlorine on the 
further progress of the reaction. — Ztschr. f phvsik. Chem., 1906, 
v. 55. pp. 177-481. 
Heinsheimer, F. (Arch. f. Verdauungs-Krankh., Boas, Berl., vol. 12, 
Xo. 2). experimented on dogs with Pawlow fistula, finding that hy- 
drochloric acid had no more influence on secretion than water had, if 
given before feeding, but if the acid was given at the beginning of 
secretory activity this continued longer than if water were given at 
that time. — J. Am. M. Ass., 1906, v. 16. p. 1733. 
ACIDUM HYDROCYANICUM DILUTUM. 
Greshoff. IV., enumerates a number of plants found to yield hydro- 
cyanic acid. — Arch. d. Pharm., 1906, v. 211. pp. 397-100. 
Presents additional comments on the above list, including a list 
of the cyanogen glucosides, the date of their discovery, and the name 
or names of the discoverer. Also a list of the hvdrocvanic acid yield- 
ing plants in alphabetical order. — Ibid., pp. 665-672. 
He also prints, at Guignard’s request, a paper read before the 
British Association for the Advancement of Science on the distri- 
bution of hydrocyanic acid in the vegetable kingdom, together with a 
list of plants. It is followed by a paper from Guignarcl on the ex- 
istence of a cyanic compound in the Passiflora?. — Bui. des sc. phar- 
macol. Par.. 1906. v. 13, pp. 589-605. 
Thiery proposes a method for the detection of hydrocyanic acid 
based upon the employment of an alkaline solution of phthalo- 
phenone in the presence of sulphate of copper. The reagent may be 
used in the form of a paper in the place of picro-sodic paper. It 
keeps well and is very sensitive. — J. de pharm. et de chim. Par., 1906, 
v. 24, p. 565. 
Bourquelot comments on this reaction and finds it of the same 
order as that of Schonbein. — Ibid.. 565. 
Caspari, Charles E.. reports one sample examined: Contained 1.6 
per cent hydrocyanic acid. — Proc. Missouri Pharm. Ass., 1906, p. 101. 
DeDominicis, Angelo, discusses the action and the elimination of 
hydrocyanic acid and records a number of experiments. — Boll. chim. 
farm.. Milan, 1906. v. 15, pp. 367-372. 
Tinteman (Deutsche med. AVchnsclir., Berl. Leipz., v. 32, Xo. 12) 
relates that a chemistry student dropped a reagent glass containing 
some hydrocyanic acid, and, stooping to pick up the glass, he inhaled 
some of the acid. He suffered from vertigo, headache, motor unrest, 
