1. XV. On the anatomy and physiology of cordylophora, a contribution to our knowledge of the Tubularian zoophytes
2. 1963 Report on the present state of our knowledge of the reproductive system of the Hydroida. Report of the Thirty-Third Meeting of the British Association for the Advancement of Science, pp. 351-426.
3. 1963 Fertilization and transport of the ovum. In: Mechanisms Concerned with Conception, ed. New York, MacMillan, pp. 285-320.
4. 1965 An Introduction to Embryology, 2nd edition, Philadelphia, Saunders, p. 103.