This series of obstetric illustrations consists of only 23 photographs and for this reason the authors purposely avoided the use of the term "atlas." The photographs were made from cases observed at the "Concepcion Palacio" maternity hospital, where more than 6,000 women are delivered each year. The illustrations represent a variety of abnormalities; twelve depict congenital disturbances and anomalies in the newborn. The maternal conditions shown are a normal pregnant uterus, perforation of the uterus, rupture of the uterus, purulent endometritis, tubal pregnancy, abdominal pregnancy, placenta previa with twins, rupture of the hepatic capsule in a case of toxemia, papilloma of the vulva, Werlhof's disease in pregnancy and hydatid mole. The illustrations are clear and instructive and form a useful collection for any one interested in obstetrics.