1. 1880 A Treatise on Comparative Embryology. Vol. 2. Macmillan and Co., London.
2. The development of the thoracic vertebrae in man
3. 1910 Development of the skeleton and of the connective tissue. In: Manual of Human Embryology. Vol. 1. and eds. J. B. Lippincott Co., Philadelphia, pp. 292-453.
4. Development of the limbs, body-wall and back in man
5. 1961 The Stages of Development before Birth. W. B. Saunders Co., Philadelphia.