Heart, Front View of
A representation of the heart as it really appears showing the front view. At a is the right auricle that receives blood from all pats of the body by two large veins h and i. At b is the right ventricle, which receives the blood from the auricle and sends it to the lungs by the pulmonary artery f. At c is the left auricle, which receives the blood from the lungs by the pulmonary veins g, g, g. At d is the left ventricle which receives blood from the auricle and forces it all over the body through the aorta e.
Hooker, Worthington First Book in Physiology For the Use of tissue_388243000Schools and Families (New York: Sheldon and Company, 1867) 50
Courtesy the private collection of Roy Winkelman