Abstract
1. The histochemical properties of acid mucopolysaccharides of mucin in pretibial myxedema and scleromyxedema were surveyed.
2. In myxedema, the mucin stained deeply with alcian blue, somewhat lightly with aldehyde fuchsin, and showed partly metachromasia.
3. In scleromyxedema, the mucin stained intensely with alcian blue, was metachromatic with toluidine blue, and manifested relatively strong affinity for aldehyde fuchsin.
