[184] Forel, Compte Rendu, 1875, 1876, 1878, 1879, and p. Du Bois, 1891. Also Forel’s Lac Leman.

[185] C. A. Davis, Journ. of Geol., Vol. VIII, pp. 485–97, and 498–503, and Vol. IX, pp. 491–506.

[186] Russell, Lake Lahontan, Mono. XI, U. S. Geol. Surv., Chap. V; also Third Ann. Rept., pp. 211–221. Gilbert, Lake Bonneville, Mono. I, U. S. Geol. Surv., p. 167.

[187] Stapff, Zeit. deut. geol. Gesell., Vol. XVIII, pp. 86–173.

[188] Upham, Lake Agassiz, Mono. XXV, U. S. Geol. Surv.; Salisbury and Kümmel, Lake Passaic, Rept. of the State Geologist of N. J., 1893, and Jour. of Geol., Vol. III, pp. 533–560; Gilbert, Lake Bonneville, Mono. I, U. S. Geol. Surv.; Russell, Lake Lahontan, Mono. XI, U. S. Geol. Surv.; and Mono Lake, Eighth Ann. Rept., U. S. Geol. Surv., Pt. I.

[189] Gilbert, Lake Bonneville, Mono. I, U. S. Geol. Surv., p. 71, and Topographic Features of Lake Shores, Fifth Ann. Rept. U. S. Geol. Surv., p. 109.

[190] Buckley. Wis. Acad. of Sci., Vol. XIII, Pt. I, 1900. A study of ice ramparts formed about the shores of Lake Mendota, Wis., in 1898–99.

[191] Copied from Russell’s Lake Lahontan, Mono. XI, U. S. Geol. Surv.

[192] Less .04254 carbonic acid added to amount found. Average of two analyses.

[193] Average from four analyses.