(9) Béchamp, 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. 55949, Nov. 9, 1889. German Pat. 58508, Sept. 16, 1890. German Pat. 82555, Nov. 15, 1894.
(13) German Pat. 58508, Sept. 16, 1900.
(14) French Pat. 231230, June 30, 1893.
(15) German Pat. 93009, Nov. 19, 1895. French Pat. 254703, March 12, 1896. English Pat. 6858, March 28, 1896.
(16) American Pat. 573132, Dec. 15, 1896.
(17) This proportion is the most advantageous, and furnishes the best liquid collodions that can be spun.
(18) French Pat. 259422, Sept. 3, 1896.