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The basis for training visual abilities to enhance sports performance is explored. Optometric intervention in sports assumes the following statements to be true: 1. Athletes have better visual abilities than non-athletes and better athletes have better visual abilities than the poorer athletes, 2. Visual abilities are trainable, and 3. Visual training is transferable to the performance of the athlete. The literature demonstrates that athletes have better visual abilities than non-athletes. Studies have shown this to be true in the following areas of vision: Larger extent of visual fields, larger fields of recognition (peripheral acuity), larger motion perception fields, lower amounts of heterophoria at near and far, more consistent simultaneous vision, more accurate depth perception, better dynamic visual acuity, and better ocular motilities. The literature also shows that all of the above skills are trainable. Two studies are cited that support the belief that visual training is transferable to athletic performance but they suffer from inadequate experimental design.

A case report of a patient with primary fibrinolysis resulting in hemorrhage after an oral surgical procedure has been presented. A comparison was made between DIC and primary fibrinolysis in patients with carcinoma of the prostate gland; etiology, clinical findings, diagnosis, and treatment were discussed.

The effect of the ingestion of thyroid extract on normal and myxedematous people has been studied by several observers. The general opinion seems to be that cases of myxedema and cretinism respond readily to thyroid extract by a considerable increase in basal metabolism, and that normal and obese people, while usually affected, respond to a less marked degree. DuBois1reports a case of cretinism whose basal metabolism rose 20 per cent. in three and one-half days under the influence of thyroid extract. The amounts of thyroid extract employed differ greatly in the investigations on normal and obese individuals. A patient with obesity studied by Magnus-Levy2received the largest dose of thyroid extract that we know of— from 3 to 5 gm. daily for nineteen days. Anderson and Bergman3used large doses, but only for one day before observations. Thiele and Nehring4used doses up to 0.9 gm. a day. Observations