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Fig. 8. Normal human embryo 16 mm. long (No. 256). The head had been crushed in handling and the brain escaped through the two openings over the eyes.	Fig. 9, Sagittal section of a normal human embryo 7.5 mm. long (No. 221).

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Embryo 256 was later classified as Carnegie stage 20.

Embryo 221 was later classified as Carnegie stage 16.

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