ARTHUR VON TEMPSKY. "Mitla, a Narrative of Incidents and Personal Adventures." London, 1858.--Of small scientific value. GUILLERMO DUPAIX, AND CASTAÑEDA. (In "Antiquités Méxicaines," also in Lord Kingsborough's "Antiquities of Mexico.") DÉSIRÉ CHARNAY. (Saw the ruins in 1859. His photographs are very important.) JOSÉ MARIA GARCIA. (Visited Mitla in 1855, according to "Boletin de la Sociedad Mexicana de Geografia y Estadistica." Vol. VII., pp. 271 and 272.) BRANTZ-MAYER. "Mexico as it Was and as it Is." New York, 1844. Very fair. "Mexico, Aztec, Spanish and Republican." Hartford, 1853. Very good. "Observations on Mexican History and Archæology." (Smithsonian Contributions. No. 86, Washington, 1856.) Contains Sawkins' drawings of Mitla. J. W. VON MÜLLER. "Beitrage zur Geschichte und Ethnographie von Mexico." Leipzig, 1865. "Reisen in den Vereinigten-Staaten, Canada, and Mexico." Leipzig, 1864. CARLOS MARIA DE BUSTAMANTE. "Memoria estadística de Oajaca, y descripcion del Valle del mismo nombre." Vera-Cruz, 1821. MURGUIA. "Estadistica antigua y moderna de la Provincia de Guajaca." "Boletin, &c." Vol. II. JUAN B. CARRIEDO. The writings of this author are, unfortunately, but little known.--In the "Ilustracion Mexicana," Vol. II., he has given an essay on "Los Palacios Antiguos de Mitla."--But he has published other papers and even books on the same subject. "Estudios históricos, y estadísticos del estado Oaxaqueño." Oajaca, 1850. The Astor Library of New York has an incomplete copy of a work of Carriedo on Oajaca, with colored drawings by him,--unfinished. Copious notes by the author's own hand accompany the text. In historical questions Carriedo mostly follows and cites Burgoa. FRANCISCO PIMENTEL. "Cuadro descriptivó de las Lenguas Indígenas de México." (See Yucatan and Chiapas.) MANUEL OROZCO Y BERRA. In "Geografia de las Lenguas."--Reference is made to a number of very important papers on Oajaca, the title of one, among others, "Estado que comprende el número de Parroquias de la Diócesis de Oajaca, con expresion de sus nombres, Estado ó Territorio en que están situadas, número de pueblos, &c., &c." Further, certain official reports are quoted,--the originals of which are in the hands of my friend S^r J. G. Icazbalceta,--S^r Orozco mentions the following: PEDRO DE LEDESMA. "Relacion de Oajaca, por el alcalde...." 1579. HERNANDO DE CERVANTES. "Relacion de Teotzacualco y Amoltepec...." 1580. AUGUSTIN DE SALAZAR. "Relacion del vicario de Chilapa." JUAN LOPEZ. "Relacion del Corregidor...." 1579. Finally, I must call attention to a linguistical work, known to me only through S^r Orozco y Berra's citation, and through references given by S^r Pimentel--to wit: ANTONIO DE LOS REYES. "Arte en lengua mixteca." México, 1593. Numerous grammars, vocabularies, "doctrinas," sermonaries, &c., &c., were written in the course of the 16th century, of and in the language of Oajaca.