CHAPTER I. FIRST SPECIES OF DYSTOCIA.

Malposition of the child.--Arm or shoulder the only faulty position of a full-grown living foetus.--Causes of malposition.--Diagnosis before and during labour.--Results where no assistance is rendered.--Spontaneous expulsion.-- Malposition complicated with deformed pelvis or spasmodically contracted uterus.--Embryulcia.--The prolapsed arm not to be put back or amputated.--Presentation of the arm and head.-- Presentation of the hand and feet.--Presentation of the head and feet.--Rupture of the uterus.--Usual seat of laceration.-- Causes.--Premonitory symptoms.--Symptoms.--Treatment.-- Gastrotomy.--Rupture in the early months of pregnancy, 264