29 ([return])
[ See frontispiece.]
30 ([return])
[ At the memorable Bath meeting of the British Association, Sept. 1864.]
31 ([return])
[ Mr. Richard Spruce, "Ocean Highways," August, 1873, p. 213.]
32 ([return])
[ "Lowlands of the Brazil," chap. xvii. Tinsleys, 1875. II.]
33 ([return])
[ "Journal of the Royal Geographical Society," vol. iii. p. 206, 1833.]