[II-9] Hist. Mag., vol. iv., pp. 144, 177, 240-1, 274.

[II-10] Seemann's Voy. Herald, vol. i., p. 314.

[II-11] Cullen's Darien, p. 38.

[II-12] Pim and Seemann's Dottings, pp. 25-32; Tate's Ancient British Sculptured Rocks.

[II-13] Bidwell's Isthmus, p. 37; Hist. Mag., vol. iv., p. 176.

[II-14] 'A much higher antiquity must be assigned to these hieroglyphics than to the other monuments of America.' Voy. Herald, vol. i., p. 313.

[II-15] Hist. Mag., vol. v., p. 50.

[II-16] Vol. i., chap. vii. of this work.

[II-17] Merritt and Davis, in Hist. Mag., vol. iv., pp. 176, 274.

[II-18] In a work which I have not seen. That author's Coup d'Œuil sur la République de Costa Rica, and Memoir on the Boundary Question, furnish no information on the subject.