FIGURE 1.148. SECTION OF FORE-HALF OF CHICK-EMBRYO.
FIGURES 1.149 AND 1.150. SECTIONS OF HUMAN EMBRYOS.
FIGURE 1.151. SECTION OF A SHARK-EMBRYO.
FIGURE 1.152. SECTION OF A DUCK-EMBRYO.
FIGURES 1.153 TO 1.155. SOLE-SHAPED EMBRYONIC DISK OF CHICK.
FIGURES 1.156 AND 1.157. EMBRYO OF THE AMPHIOXUS.
FIGURES 1.158 TO 1.160. EMBRYO OF THE AMPHIOXUS.
FIGURES 1.161 AND 1.162. SECTIONS OF SHARK-EMBRYOS.
FIGURE 1.163. SECTION OF A TRITON-EMBRYO.
FIGURES 1.164 TO 1.166. VERTEBRAE.