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Abstract
The dehydroxylated product obtained by heating hemolytic asbestos fibers of the chrysotile variety at 1,000 C still possesses hemolytic properties. A comparison of the lytic processes of these two materials indicates that they are not identical, as is shown by the fact that they are antagonized by the selective action of different polymers such as sodium carboxymethyl cellulose, in the case of the unheafed chrysotile, and polyvinyipyridine-N-oxide, in the case of the heated product. The nature of the surface of the two materials and the polymer structure may explain the different interactions.