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How to prepare them for microscopical mounting
Beauty of diatom frustules — Utilisation of ditto in the arts
Various species of diatoms, Isthmia Pinnularia, Pleuro-
sigma, Navicula, Stauroneis, Cocconeis, &c. Stalked
diatoms, as Licomophora — Structure of latter — The Amœbas
- Fresh-water sponges Structure of ditto - Hydras -
Their habits and development · Rotifers - Sessile rotifers
- Melicerta and Stephanoceros — Their habits and structure
Infusoria Vorticella, Epistylis, &c. — Rotifer vulgaris
Habits of ditto Fresh-water polyzoa Lophopus

crystallina, Plumatella repens, &c. — Cyclops, its habits

and development — Water fleas — Relation of animalcules

to each other

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at ditto
Alligators and crocodiles at Southport, Manchester, and
Brighton - Edible turtles at Brighton Hawk's-bill turtle
- Marine fishes The lancelet (Amphioxus) at Sydenham
Mud-fish at Brighton Smooth hound and tope
Common dog-fish-Its habits-Small-spotted dog-fish-
Eggs of skate and dog-fish - Mode of reproduction in sharks
Thornback Angel fish Homelyn ray

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ditto Smooth blenny - Secretions of fishes -Parasites of
ditto Beauty of the blennies — Butterfly blenny — Vivi-
parous blenny - Young of ditto - Tameness of the blennies

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- Rock goby — Structure of sucking disk of ditto — Spotted

goby - Heterogeneous character of "whitebait."

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Herrings in ditto -

The pilchard —Whiting and cod -

Ova of cod-Spawning of cod at Brighton and Sydenham

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Grey mullet - Food of ditto

— Sea-bream — The sturgeon and sterlet — Pipe-fishes, their
habits and structures — Different species of pipe-fishes-
Breeding of ditto - Sea-horses (Hippocampi) — Their struc-
ture, habits, and food - Breeding of ditto at Manchester and
Southport Flat-fishes Their embryology — Adaptation

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of colour to sea-bed - Structural modifications of flat-fishes

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Animals as aquarium scavengers · Hermit crabs Habits

and structure of ditto-Battles of ditto for empty shells

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Spiny lobster, or crawfish - Embryology of ditto -

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Gosse and Lankester on sea-anemones

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