Document rxMK8Zeab5yb60a92k5YveX6r

J. P. Morgan 2 November 7> 1966 are generally safe for chrysotlle asbestos, while concentrations of glass dust less than 20 MM particles/ft3 are not harmful. (A , . reference value of 0.5 MM particles/ft3 for an office or similar * room may be helpful in appreciating the levels mentioned above.) In recalling our discussion, I believe you mentioned that asbestosis, which is the formation of nodules around asbestos fibers accumulated in the lung, results from continuous exposure to asbestos dust for long periods of time, and is similar to sill- cosis. Asbestosis can lead to cancer in the lower lobes of the lung. Mesothelioma is the formation of malignant tumors in the layer of tissue called the mesothelia, and usually occurs in the plural cavity, although tumors have been known to develop in the same stratum of tissue elsewhere in the body. Your guidance in the proper handling of asbestos, glass and related fillers for plastics will be greatly appreciated. This area of research has considerable business potential and Ls while we do not want to inhibit ourselves unnecessarily, we want to make sure that our operations are consistent with the latest medical knowledge. sdo DUP 0900684