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Endocrine exophthalmos is a poorly understood disease process thought to be related to a dysfunction of the thyroid-pituitary axis. Initial therapy for symptomatic endocrine exophthalmos is medical. Failure to respond to medical management is heralded by progressive exophthalmos, exposure keratitis, and decreasing visual acuity. The pathophysiologic processes involved and an historical review of the various surgical procedures used are discussed. The results of 28 patients surgically decompressed by a transantral transethmoid approach are presented. Preservation or improvement in visual acuities were observed in all but one patient. Diplopia was generally not improved and may be worsened in some patients.

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Many studies have been made of the effects of radiations on mitosis in plant cells, but the design of the experiments has been such that they could not be compared readily with effects on animal cells. In the present study an attempt has been made to deal with plant material in the same manner as has been frequently used for animal tissues, namely, ( 1 ) to maintain the cells at a constant temperature before and after irradiation, (2) to make accurate dosage measurements at each treatment, (3)

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