1812. Keys, William. A Topographical Description of the Neelaghery Mountains (a letter printed in Grigg’s Manual of the Nilagiri District, Appendix, p. xlviii).
1819. “A Subscriber.” Letter to the Madras Courier, Feb. 23, 1819 (reprinted in Grigg’s Manual, Appendix, p. lii).
1820. Macpherson, Evans. A Letter reprinted in Grigg’s Manual, Appendix, p. lv.
1821. Ward, B. S. Geographical and Statistical Memoir of a Survey of the Neelgherry Mountains (printed in Grigg’s Manual, Appendix, p. lx).
1829. Hough, James. Letters on the Climate, Inhabitants, Productions, etc., of the Neilgherries or Blue Mountains of Coimbatore, South India. London. (Letters previously published in the Bengal Hurkaru, 1826.)
1829. Young, D. S. An Account of the General and Medical Topography of the Neelgherries. Trans. Medical and Physical Soc. of Calcutta, vol. iv, p. 36.
1832. Harkness, Henry. A Description of a Singular Aboriginal Race inhabiting the Summit of the Neilgherry Hills. London.
1834. Jervis, H. Narrative of a Journey to the Falls of the Cavery; with an historical and descriptive Account of the Neilgherry Hills. London.
1834. Mignon, Capt. Notes extracted from a Private Journal written during a Tour through Malabar and among the Neilgherries. Bombay, American Mission Press (I have not been able to see a copy of this book).
1837. Schmid, Bernhard. An Essay on the Relationship of Language and Nations. Madras Journ. Lit. and Sci., vol. v, p. 133: on p. 155 is a section “On the Dialect of the Todavers, the Aborigines of the Neelgherries.”