Following many years behind Europeans, especially Germans, Americans have at last definitely inaugurated a scientific movement which aims to develop knowledge and machinery on a national scale for the diagnosis and the educational training treatment of disorders of speech. This is a timely and welcome book, the first to be presented in a single volume in English, which aims to disclose the foundations of knowledge on which that movement must be based. The author writes from the standpoint of the members of the new profession, the lalophoniatrists ("lalos, speech; phonos, sound, or, here, voice; iatros, one who studies and treats disease"). The anatomic, physiologic, pathologic, psychologic, neurologic, laryngologic and psychogenic foundations on which the understanding and treatment of disorders of speech depend constitute the theme. The chapters include: endocrinopathies (cretinism, mongolism), neuropathies (spastic paralysis, choreatic speech, dysphasias), peripheral anatomic abnormalities (cleft palate, etc.), aural deficiencies and psychogenic bases of speech