CHAPTER I. SIGNS OF PREGNANCY.

Difficulty and importance of the subject.--Diagnosis in the early months.--Auscultation.--Changes in the vascular and nervous systems.--Morning sickness.--Changes in the appearance of the skin.--Cessation of the menses.--Areola.--Sensation of the child's movements.--"Quickening."--Auscultation.--Uterine souffle.--Sound of the foetal heart.--Funic souffle.--Sound produced by the movements of the foetus.--Ballottement.--State of the urine.--Violet appearance of the mucous membrane of the vagina.--Cases of doubtful pregnancy.--Diagnosis of twin pregnancy, 80