Solvent glands of birds
Larus canus [Common gull gizzard]
Drawings of parabolas
African ostrich [gizzard]
Rhea americana [gizzard]
American ostrich [Rhea gizzard]
Parrot [gizzard]
Little auk [gizzard]"
Woodpecker [gizzard]
Vertebrae and ribs of a boa constrictor
Gizzard of the Soland goose
N.S.W. Cassowary [gizzard]
Cassowary [gizzard]
Adjutant or Argala [gizzard]
Eagle [solvent gland]
Struthio camelus [African ostrich gizzard]
On Some Phenomena of Colours, Exhibited by Thin Pl...
Cardiac cavities and gizzards of birds
Periscopic camera obscura
![Larus canus [Common gull gizzard]](https://dlc.services/thumbs/rs/2/PT_73_3_8/full/274,/0/default.jpg)
![African ostrich [gizzard]](https://dlc.services/thumbs/rs/2/PT_73_3_14/full/273,/0/default.jpg)
![African ostrich [gizzard]](https://dlc.services/thumbs/rs/2/PT_73_3_13/full/283,/0/default.jpg)
![Rhea americana [gizzard]](https://dlc.services/thumbs/rs/2/PT_73_3_12/full/283,/0/default.jpg)
![American ostrich [Rhea gizzard]](https://dlc.services/thumbs/rs/2/PT_73_3_11/full/273,/0/default.jpg)
![Parrot [gizzard]](https://dlc.services/thumbs/rs/2/PT_73_3_10/full/279,/0/default.jpg)
![Little auk [gizzard]"](https://dlc.services/thumbs/rs/2/PT_73_3_9/full/277,/0/default.jpg)
![Woodpecker [gizzard]](https://dlc.services/thumbs/rs/2/PT_73_3_7/full/400,/0/default.jpg)
![N.S.W. Cassowary [gizzard]](https://dlc.services/thumbs/rs/2/PT_73_4_4/full/286,/0/default.jpg)
![Cassowary [gizzard]](https://dlc.services/thumbs/rs/2/PT_73_4_3/full/283,/0/default.jpg)
![Adjutant or Argala [gizzard]](https://dlc.services/thumbs/rs/2/PT_73_4_2/full/307,/0/default.jpg)
![Eagle [solvent gland]](https://dlc.services/thumbs/rs/2/PT_73_3_16/full/252,/0/default.jpg)
![Struthio camelus [African ostrich gizzard]](https://dlc.services/thumbs/rs/2/PT_73_3_15/full/275,/0/default.jpg)
