[81] Jahresbericht über die Fortschritte der Pharmacognosie etc. 1883, p. 314. [82] Archive der Pharmacie 1893, Vol. 231, p. 694. [83] Zeitschrift des allgem. öster. Apoth.-Vereins 1898, p. 434. [84] Repert. f. anal. Chemie 1885, Vol. 5, p. 178; cf. also the investigations of Mathes & Müller. [85] Grundriß einer Histochemie der pflanzl. Genußmittel, p. 22. [86] Bulletin de la société chimique Paris 1872, p. 33. [87] Pharmaceut. Zeitung Vol. 24, p. 243. [88] Journ. de Pharm. et de Chim. 1883, Ser. V, Vol. 7, p. 506. [89] König, Die menschlichen Nahrungs-und Genußmittel, Vol. 1, p. 261. [90] Zipperer, Untersuchungen über Cacao und dessen Präparate, p. 55. [91] Zeitschr. für Untersuchung von Nahrungs-u. Genußmitteln 1898, No. [92] Repertorium der analyt. Chemie 1885, Vol. 5, p. 178. [93] Compare Matthes & Müller, Z. U. N. 1906, Vol. 12, p. 90 et seq. [94] Almost a tenth part of the ash of the shells consists of silica. [95] cf. Moeller Mikroskopie der Nahrungs-und Genußmittel. Berlin. 1905. II part Springer p. 412. [96] Ztschr. öffentl. Ch. 1899, p. 27. [97] German patent No. 71, 373, 8th. January 1873. [98] Engl. Patent No. 14624, June 16th. 1897. [99] Pharm. Rundschau 1898, p. 781. [100] Ztschr. für chemische Industrie 1878, p. 303, German Patent No. 2112, Sept. 24th. 1878. [101] Annales de Chimie et de Physique, Vol. 183, p. 423. [102] Zeitschrift für Pferdekunde und Pferdezucht 1888, No. 7. Nowadays cacao shells are often added to fodder. [103] Quoted by Filsinger Zeitschr. f. öffentl. Chemie 1899, p. 27. [104] Communication from the Assoc. German Choc. Manufacturers, 19th. year, No. 7. +Part II.+ The Manufacture of Cacao Preparations. A. Manufacture of Chocolate. The Preparation of the Cacao Beans.