Summary

Discusses peacocks and the rediscovery of the long-lost crested turkey.

Summary

Discusses the development of horns in antelopes. Remarks on the variation within and between the species of Cervus and on their relationship to each other.

Summary

EB is moving to Wiltshire for a week.

Tells CD of animals acquired, or about to be acquired, by the Zoological Garden.

Summary

Thanks CD for invitation to Down.

Summary

Wonders if George Darwin can explain why a thin stream of water poured from a jug always spirals right to left.

Summary

Discusses the top-knot turkey and the occasional appearance of the top-knot in a breed of cream-coloured turkeys.

Summary

Sexual differences in bird species and seasonal variation in plumage.

Summary

Gives CD a reference to one of his papers ["Remarks on the modes of variation of nearly affined species or races of birds", J. Asiat. Soc. Bengal 19 (1850): 221–9]

and discusses moulting in birds.

Quotes instance of an action by an elephant that apparently displays considerable intelligence.

Summary

Replies to CD’s questions on sexual differences in birds.

Summary

Describes his tour of the Netherlands. Reports on some of the specimens he saw on his trip.

Discusses the coloration of hair in aged monkey

and sexual differences in bird species.

Summary

Sexual differences in antelopes (Indian and African).

Summary

Will attempt to provide CD with the information requested as soon as he can.

Gives references to some recent papers and articles which might interest CD.

Is currently reviewing Wallace’s new book [Malay Archipelago].

Summary

Has found no difference between male and female rhesus monkeys at the Zoological Gardens in amount of facial hairiness. Observations on other monkeys.

Summary

Gives some observations and opinions on the appearance and behaviour of mandrills.

Summary

Notes on the interbreeding of different races of silkworm. [Forwarded with explanatory note by Edward Blyth.]