128 
Lange, V. (Therap. Monatsh., 1906, No. 12), repeats his recommen- 
dation, confirmed by twenty years 1 practice, of lactic acid in the 
treatment of chronic suppurative middle ear disease. In case of 
fibrous vegetations he did not obtain favorable results, since the 
acid did not penetrate to a sufficient depth. In the frequently re- 
lapsing cases of acute inflammation of the auditory meatus, he ob- 
tained good results by painting the meatus with 40 per cent lactic 
acid. — Abstr. in Merck's Ann. Rep., 1906, v. 20 (Darmstadt, May, 
1907), p. 12. 
ACIDUM NITRICUM. 
Wenzel, Franz, reviews the production of nitric acid and nitrates, 
particularly the economic utilization of atmospheric nitrogen. — 
Oesterr. cliem. Ztg. Wien, 1906, v. 9, pp. 34-36. 
Reusch, K., reviews the literature of the year relating to the produc- 
tion of nitric acid and discusses the economic conditions. — Chem. Ztg. 
Cothen, 1906, v. 30, p. 328. 
Guttmann, O. (Ztschr. ges. Schiesz- u. Sprengstoffwesen, 1906, 
v. 1, p. 376), discusses the economic production of nitric acid. — Chem. 
Repert. Cothen, 1906, v. 30, p. 352. 
An editorial discusses the utilization of atmospheric nitrogen and 
describes, with illustrations, some of the machinery in use in Norway 
for the production of nitric acid and nitrates. — Pharm. Ztg., Berl., 
1906, v. 51, p. 97. 
Bodenstein, Max, discusses the formation of nitric acid from atmos- 
pheric nitrogen. — Ztschr. f. ang. Chem., Berl., 1906, v. 19, pp. 14-21. 
Neuburger, Albert, describes and figures a number of pieces of ap- 
paratus for the utilization of atmospheric nitrogen in the production 
of nitric acid. — Ibid., v. 19, pp. 977-985. 
Thompson, Silvanus, gave, before the Royal Institution, a demon- 
stration of the method used in Norway for the manufacture of ni- 
trates from the air. — Notes with figures in Chem. & Drug., Loud., 
1906, v. 68. p. 225. 
Wagner, Rinck, and Schultze call attention to the absence, in the 
Ph. Germ. IV, of tests for the lower oxides of nitrogen in nitric 
acid, and point out that the presence of these lower oxides materially 
affects the use of nitric acid in connection with the immersion refrac- 
tometer. — Chem. Ztg. Cothen, 1906, v. 30, p. 1182. 
Reichard, C. (Chem. Ztg., 30, 1906, No. 11, pp. 790-791), briefly 
describes the color reactions of berberin and arbutin with nitric acid, 
and explains their application. — Exper. Sta. Rec., 1906, v. 18, p. 208. 
Bornwater, J. T. (Chem. Weekbld., 1906, v. 3, pp. 30-31), proposes 
to reduce the nitrate by means of potash solution and aluminum foil 
and to distill the ammonia in a Kjeldahl apparatus. — Ibid., v. 17, No. 
11, p. 1037, 
