TO THE RIGHT HONOURABLE

CHARLES,

BARON FARNBOROUGH,

KNIGHT GRAND CROSS OF THE ORDER OF THE BATH, A MEMBER OF HIS MAJESTY's

MOST HONOURABLE PRIVY COUNCIL, AND ONE OF THE TRUSTEES

Il Geographical Distribution of Ditto

Migrations of Ditto

Local Distribution of Ditto -

!ll. General Functions and Instincts of Ditto

IV. Functions and Instincts. Infusories

24

47

69

71

79

5. Diplostomum volvens

6. Eye of a perch infested by Diplostoma.

177