. Elementary biology; an introduction to the science of life . Fig. 49. Expression of face associated with adenoids The open mouth, the sleepy eyes, the strain about the nose, are results of defective breathing due to obstructions in the rear air passages of the nose. (From a photograph by Jessie Tarbox Beals)

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Keywords: ., bookcentury1900, bookdecade1920, bookpublishe, booksubjectbiology