(4) Without questioning the good faith of Pauly, it is nevertheless a fact that the original patent remains as a document, and therefore that the value of the Pauly patents is very questionable.
(5) Girard, Ann. Chim. et Phys, 1881 (5), 24, p. 337-384.
Group III
(1) Cross and Bevan, Cellulose, 1895, p. 8.
(2) English Pat. 16805, Dec. 22, 1884.
(3) English Pat. 17901, July 30, 1897.
(4) Bronnert, American Pat. 646799, April 3, 1900.
(5) Cross and Bevan, Cellulose, 1895, p. 12.
Group IV
(1) English Pat. 8700, 1892. German Pat. 70999, Jan. 13, 1893.