Note 1 — Chapter XXVI
Reading edition
The Akka are viviparous. The female produces progeny at five-year intervals, never more than two at a time. They are monogamous, like certain of our own Ranidae. Pending my monograph upon what little I had time to learn of their interesting habits and customs, the curious will find instruction and entertainment in Brandes and Schvenichen's Brutpfleige der Schwanzlosen Bat rachier, p. 395; and Lilian V. Sampson's Unusual Modes of Breeding among Anura, Amer. Nat. xxxiv., 1900.—W. T. G.