Molybdenum (10mg per 100gm B. W. per day) was administered to four rabbits, 106 days old, for 147 days in order to examine its toxicity upon the tissue of skin and wool.
The results oftained were as follows:
(1). There was no significant difference in tlle thickness of the skin between the treated rabbits and the non-treated ones.
(2). The wool medulla of the treated rabbits was inferior in its development to that of the non-treated, but the thickness of the whole wool showed no remarkable difference.
(3). The breaking stress and the tension of wool were inferior to those of the non-treated, but the degree of inferiority was lower in the tension than in the breaking stress.