Comments |
P.S107 right column bottom paragraph: "The layer of epicuticle, shown in Fig 4, has been a matter of controversy since von Allworden (ref 1) deduced its existence by observing the membrane-bound sacs on mammalian hairs treated with chlorine water. As recently as 1995, an assertion was made that the membrane is not a histologically identified component of the cuticle cell, but rather a by-product of the reactive modification of other subcomponents of the cuticle (ref 2). Atomic force microscopy tentatively identified the epicuticle as a continuous layer 13 nm thick, covering the entire outwardly facing intracellular surface of every cuticle cell (primary source)." |