in Miocene of N. Italy, [178]

in Eocene of Alps, [178]

in Eocene of Carpathians and Apennines, [179]

absence of, in English and N. American Tertiaries, [180]

Ice-cap, why improbable or impossible, [161]

Iceland, a continental island, [450]

Icteridæ, [50]

Iguanidæ, [50]

Indian birds in Formosa, [407]

Indian Ocean as a source of heat in Tertiary times, [192]