The initial stage in the development of the lens capsule in chick and mouse embryos

Abstract

Electron microscope observations on the first stage of lens capsule development in chick and mouse embryos are described. A process unique to this stage was seen, in the first reduplication (and only the first) of the original single basement membrane, in which “blister-like” projections erupted from the original single basement membrane, and eventually coalesced with each other to form a second layer. The possible significance of this observation is discussed.