1) The tensle strength, the elongation, the heat resistance, the water absorption and the permeability of the dressed hate fur were reported in the first and second reports. Among 40 white hates, aged 8 months, 20 were stripped in summer and 20 were stripped in winter, which were treated by the methods of Chrome, Alum, Acid, and Milk dressing differently The crack strength was tested in accordance with regular methods and at the same time compared the superiority against different seasons and dressing methods respectively. 2) As the result of testing the grain crack strength of dressed hate fur, the maximum were 0.61 ㎜. of Acid dressing in summer and 0.62 ㎜. of Milk in winter, and the minimum were 0.24 ㎜, of Chrome in summer and 0.20 ㎜, of Chrome in winter. There was no significant different between summer and winter as a result of the Dancan`s new multiple range test, and there were 5% significance among Milk dressing for winter, Acid for summer, Alum for summer, and Alum for winter, and were 1% level of significance among other treatments. Viewing the physical properties of the fur, the goodness of crack strength were in turns of following order: Chrome and Acid dressing for winter, Chrome, Acid, and Alum for summer, Alum and Mills for summer, and showed the same strength, the Acid dressing for summer and the Alum dressing for summer 3) Evaluating wholly the tensil strength, the elongation, the heat resistance, the water absorption, and the permeability, in the physical properties of the dressed hate fur, the Chrome dressing was the best, the Alume was remarkably bad, the Milk and Acid were equivalent, and in the crack strength, generally the Chrome was good and the Milk dressing was bad.