1912 Stomach: 1 Willis’s inverted stomach | 2 Bidloo’s unopened stomach | 3 Home’s stomach inverted | 4 stomach subdivisions | 5 embryo 10 mm | 6 embryo 16 mm | 7 embryo 19.3 mm | 8 embryo 19.0 mm | 9 embryo 44.3 mm | 10 | 11 | 12 | 1912 Lewis | Historic Papers