William Elder

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a bearing on graphic aphasia, or, as it is more correctly designated, agraphia. Agraphia has been known for many years to be a frequent symptom in all the types of aphasia, but the question as to(More)
T HE uropygial gland of birds, otherwise known as the oil gland, preen gland or rump gland has been the subject of much discussion and investigation for more than 100 years. The literature dealing(More)