Assorted fishing lines, hooks and lures.

Angling

Assorted fishing lines, hooks and lures.

Assorted hooks for fly-fishing.

Angling

Assorted hooks for fly-fishing.

"Suspend two similar spring balances, A and B, from any convenient support, as shown. From the wooden rod carried by their hooks, suspend a known weight. Be sure that the dynamometers hang vertical, and therefore parallel. Record the reading of the dynamometers." -Avery 1895

Two Spring Balances

"Suspend two similar spring balances, A and B, from any convenient support, as shown. From the wooden…

"Figure 7-hooks for extracting embryos, natural size; a,b,c, plain hooks; d, bill-hook, having cutting edge along the concavity." Elliot Coues, 1884

Hooks Used in the Process of Egg Blowing for the Purpose of Extracting Embryos

"Figure 7-hooks for extracting embryos, natural size; a,b,c, plain hooks; d, bill-hook, having cutting…

A hook for catching fish.

Fish-hook

A hook for catching fish.

Some hard material, bent into a curve for catching, holding, and sustaining any thing.

Hook

Some hard material, bent into a curve for catching, holding, and sustaining any thing.

Echinobothrium typus is a species of tapeworm distinguished by two fossettes with hooks on its head.

Tapeworm

Echinobothrium typus is a species of tapeworm distinguished by two fossettes with hooks on its head.