On the spinal nerves of Arnphioxus [Ibid., XX

22. Larval forms, tlieir nature, origin and affinities {Ibid., XX, 18'0).

23. Address to thedepartment of Anatomyand Physiology of the British association for

the advancement of Science {Brit. Association /?e;)0?-^5. Congrès de Swansea. 18S0).

24. A Treatise on comparative Embryology. Vol. II. London, Macmillan, 18S1. — Tra-

duction allemande par B. Vettor. léna, Fischer, 1882. — Traduction française par H. A. Robin. Paris, J.-B. Baillière et fils, 1883.

25. On the development of the Skeleton of the paired Fins of Elasmobranchii consi-

dered in relation to its bearings on the nature of the limbs of the Vertebrata (Proceedings of the Zoological Society of London, 1881).

26. On the évolution of the Placenta and on the possibillty of employing the characters

of the Placenta in the classification of the Mammalia {Ibid., 181).

27. On the nature of the organ in adult Teleosteans and Ganoids which is usually

regarded as thehead-kidney or pronephros (Çko!/ <./0M?-?i. micr. Se, XXII, 1882).

28. On the anatomy and development of Lcpidosteus (en collaboration avec M. Par-

ker) {P/nlosophical Transactions of the Royal Society, 1882).

29 . A renewed study of the germinal layers of the Chick (en collaboration avec M. Deighton)

{Quart, jauni, micr. Se., XXII, 1882J.