twenty-one years, is able to speak coherently, though slowly, and has considerable 
power of attention. The height is 165 centimetres; the osseous system is well devel- 
oped. The skull is dolichocephalic and trigonocephalic; the circumference 48.5 centi- 
metres ; the cephalic index 76.2. The measurement over the vault is 31 centimetres ; 
over the antero-posterior diameter 31 centimetres. The skin contains swellings of a firm, 
jelly-like character in the occipital, malar, and clavicular regions, and to a less degree 
about the legs. The hair is coarse. The thyroid gland is not palpable. There is con- 
siderable arteriosclerosis of the peripheral arteries. The palate is flat, with a well-