Heart a Double Organ. –On looking at the heart one would think it was a single, solid organ. It is not, however, but a double organ, divided into four compartment; the two upper ones, and they’re supposed resemblance to a dog’s ear, are called auricles, and the lower ones, from resembling a little stomach, are [...]

Size, Shape and Location of the Heart.  –In this beautiful anatomical chart we obtain an accurate idea of the relative size, shape and position of that wonderful engine, the heart, his tireless efforts to keep the wheels of life and motion are truly surprising, and fill us with amazement at the prodigious work at daily [...]