from this compound
and thus adding another to the processes existing for this purpose, he
is not of opinion that it shows any advance on the lustra-cellulose (2)
and (3). He also considers that the bisulphide of carbon, which must be
regarded as a noxious compound, is a serious bar to the industrial use
of the process, and for economic work he considers that the regeneration
of ammonia from the precipitating liquors is necessary and would be as
objectionable as the denitration baths in the collodion process. The
final product not being on the market he does not pronounce a finally
unfavourable opinion.

The author and the Vereinigte Glanzstoff-Fabriken after long
investigation have decided to make nothing but the lustra-cellulose (2)
and (3). A new factory at Niedermorschweiler, near Mulhouse, is
projected for this last production.

BIBLIOGRAPHY

_Introduction_

(1) Bull. de la Soc. industr. de Mulhouse, 1900.

(2) Reaumur, Memoire pour servir a l'histoire des insectes, 1874, 1, p.
154.

(3) English Pat. No. 283, Feb. 6, 1855.

(4) Swinburne, Electrician, 18, 28, 1887, p. 256.

(5) Weston (Swinburne), Electrician, 18, 1887, p. 287. Eng. Pat. No.
22866, Sept. 12, 1882.

(6) German Pat. No. 3029. English Pat. No. 161780, April 28, 1884
(Swan).

(7) Wynne-Powell, English Pat. No. 16805, Dec. 22, 1884.

_Group I_

(1) German Pat No. 38368, Dec. 20, 1885. German Pat. No. 46125, March 4,
1888. German Pat. No. 56331, Feb. 6, 1890. German Pat. No. 81599, Oct.
11, 1893. German Pat. No. 56655, April 23, 1890. French Pat. No. 231230,
June 30, 1893.

(2) Industrie textile, 1899, 1892. Wyss-Noef, Zeitschrift fuer angewandte
Chemie, 1899, 30, 33. La Nature, Jan. 1, 1898, No. 1283. Revue generale
des sciences, June 30, 1898.

(3) German Pat. No. 46125, March 4, 1888. German Pat. No. 56655, April
23, 1890.

(4) Swan, English Pat. 161780, June 28, 1884. See also Bechamp, Dict. de
Chimie de Wurtz.

(5) German Pat. No. 81599, Oct 11, 1893.

(6) Bechamp, art. Cellulose, Dict. de Chimie de Wurtz, p. 781.

(7) Chardonnet, addit. March 3, 1897, to the French Pat. 231230, May 30,
1893.

(8) Knofler, French Pat. 247855, June 1, 1895. German Pat. 88556, March
28, 1894.

(9) Bechamp, art. Cellulose, Dict. de Chimie de Wurtz. Blondeau, Ann.
Chim. et Phys. (3), 1863, 68, p. 462.

(10) Revue industrielle, 1890, p. 194. German Pat. 52977, March 7, 1889.

(11) French Pat. 256854, June 2, 1896.

(12) German Pat. 5