THE epithelium of the cervix and upper vagina of the cow and certain other animals produces a mucous secretion in which, according to Woodman & Hammond [1925], may be found a mucoprotein belonging to the class of mucin bodies containing mucoitin sulphuric acid, since they identified glucosamine in a specimen of cervical mucus. The chemical composition of this secretion does not appear to have been further investigated since this observation was made, but the scanty evidence available indicates that it may contain a mucopolysaccharide-protein complex (see Meyer's [1938] classification of mucopolysaccharides and glycoproteins).
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