FIGURE 2.287. THE FEMALE BREAST.
FIGURE 2.288. MAMMARY GLAND OF A NEW-BORN INFANT.
FIGURE 2.289. EMBRYO OF A BEAR.
FIGURE 2.290. HUMAN EMBRYO.
FIGURE 2.291. CENTRAL MARROW OF A HUMAN EMBRYO.
FIGURES 2.292 AND 2.293. THE HUMAN BRAIN.
FIGURES 2.294 TO 2.296. CENTRAL MARROW OF HUMAN EMBRYO.
FIGURE 2.297. HEAD OF A CHICK EMBRYO.
FIGURE 2.298. BRAIN OF THREE CRANIOTE EMBRYOS.
FIGURE 2.299. BRAIN OF A SHARK.