Note 105 — LETTER III.
Reading edition
A few vertebrate animals, viz. frogs, toads, and newts, undergo metamorphoses in some respects analogous to those of insects; their first form as tadpoles being very different from that which they afterwards assume. These reptiles too, as well as snakes, cast their skin by an operation somewhat similar to that in larvæ. There is nothing, however, in their metamorphoses at all resembling the pupa state in insects.