cion, MS., the same place and year, pp. 616, by Joseph Antonio Fabri, general mining attorney. Both works aim at a reduction of the prices for quicksilver, and gix'e a description of the methods employed for the extraction of ores, and are essentially directed against the Respuesta of Joseph Antonio do Villa-Señor y Sanchez, Mexico, 1742, pp. 136. The latter writer, so well known through his voluminous Theatro of New Spain, opposes as one of the chief officials of the quicksilver department any reduction in the price, and adduces in support the judgments rendered by several of the district tribunals. Of a later date is Joseph Garcés y Eguia's Nueva Teórica y Práctica, Mexico, 1802, pp. 168, a work written by order of the crown to diffuse a knowledge of amalgamation and smelting processes. A specimen of another class of material is the Descripcion de la Serrania de Zacatecas, Mexico, 1834, pp. 39, by C. de Berghes, which gives a detailed description of the mining region of Zacatecas, containing many historical and statistical items, part of which belongs to the period after the Independence.
Authorities of more or less value, consulted in the preceding chapter: Purga, Cedulario, 11-12, 21, 43, 79; Ordenes de la Coróna, MS., iii. 96-8; iv. 16.3; Reales Cédulas, MS., i. 32, 38-9; ii. 51; Cedulario, MS., iii. 61-2; iv. 42; Azanza, Ynstruccion, MS., 70-1, 82-7, 122-6; Leijes Varias Anot., MS., 12.3-7; Providencias sobre Azoyues, MS., passim; Recop. de Ind., i. 218; ii. 68-87, 94, 446-8, 493-4, 577; iii. 131-2; Revilla Gigedo, Banco, passim; Bandos, nos 45, 51; Instruccion, MS., i. .365-552; ii. 1-391; Lassaga, Representacion, passim; Ordenanzas de Minería (ed. Madrid, 1783), passim; Id. (ed. Paris, 1870), passim; Velazquez, Comentarios, MS., passim; Cuevas, Informe, passim; Gamboa's Commentaries, i. ii., passim; Fabri, Compend., passim; Id., Segunda Demostracion, MS., i. et seq.; Garces y Eguia, Nueva Tedrica, passim; Berghes, Decrip., i. et seq.; Lombardt, Informe, passim; Humboldt Esai Pol., i. 73-4, 127, 202, 237, 288; ii. 488 et seq.; Id., Life and Travels, 275-88; Id., New Spain, iii. 104-454; iv. 279-81, 356-72; Id., Tabla Estad., MS., 54-65; Id., Versuch, iv., passim; Alaman, Disert., i. 177-8; ii. 73-8; Id., Hist. Méj., i. 23-4, 43-4, 60-4, 99-102, 144; iii. 39-48; v. 32-4; Burkart, Reisen, i. ii., passim; Monumentos Domin. Esp., MS., 112; Vireyes de Méx., MS., 2; Montemayor, Sumarios, 55-8, 205-7; Torquemaia, i. 336-7; Vetancurt, Teatro Mex., 8-24; Villa Señor y Sanchez, Respuesta, passim; Id., i. 23-6, 38-41; ii. 267-8; Disposiciones Varias, 28-31; Burgoa, Geog. Descrip. Oajaca, ii. 226; Medina Chrón. S. Diego, 250-3; Calle, Mem. y Not., 49; Pacheco and Cárdenas, Col. Doc., ii. 209; iii. 487-8, 530-3; vi. 487-8; xiii. 218-19, 259;Concilios Prov., MS., 227; Icazbalceta, Col. Doc., i. 502-3; Col. Doc. Inéd., xxi. 532-4; Morfi, Col. Doc., MS., 1-7; Cartas de Indias, 340, 876; Beaumont, Crón. Mich., iii. 299, 544-6; iv. 475-82; v. 71-98; Beleña, Recop., i. 106-9, 311-12; ii. 212-96; Pinart, Doc. Sonora, MS., 16-22; Fonseca and Urrutía, Reed Hac., i. 5-44, 297-387; iii. 6-140, 521-636; v. 433-57; Doc. Hist. Mex., série i. tom. i. 34-5, 427, 499; Id., série ii. tom. iv. 196, 210-12, 272-4,.301-3, 343-5; Galvez, Informe, 6.3-77; Arlequi, Hist. Chron. Zac., 132 et seq.; Ward's Mex., ii. 12-58, 145-8, 160-2, 320-9, 373-97, 464-548, 612-18; Arévalo, Compend., 71-9, 95-6, 110, 119-20; Castelazo, Manifesto, 1-63; Guijo, Diario, 34-5, 427, 499; Ternaux-Compans, Voy., série ii. tom. v. 178-9, 223, 327; Laet, Am. Descript., 288; Galvan, Ordenanzas, 43-7; Michoacan, Prov. S. Nicolas, 95, 107; Peralta, Not. Hist., 177-8; Gonzales, Col. N. Leon, 72-8; Rivera, Diario, 4; Mina de S. Nicolas, 27-35; Soc. Mex. Geog., Boletin, ii. 18-22, 32-3, 40-1;-ii. 307, 313; ix. 89, 94, 101; xi. 267; Id., 2da ép. iii. 25; iv. 389; Romero, Mich., 158, 165; Cavo, Tres Siglos, i. 68, 105; ii. 138-9, 145, 164, 171; iii. 22-3; Prescott's Mex., iii. 332; Arroniz, Biog. Mex., 309-11; Id., Hist, y Cron., 139-40, 153; Estalla, xxvii. 15, 212-14, 221-4, 232-3; Berlandier, Diar. Viaj., 45-50; Castillo, Mem. Azogue, 29, 78-84 Busta-
