Vectores de 19th century

Planet with markings

Angular measurement diagram

Earth and sun orbit diagram

Orbit of moons diagram 01

Orbit and sphere diagram

Solar surface detail

Crescent moon in clouds

Armillary sphere mark

Astronomy constellation planisphere

Constellation chart Ursa Major

Southern hemisphere star chart

Armillary sphere and astronomy diagrams

Astronomical circle instrument 01

Astronomical circle instrument 02

Astronomical circle instrument with telescope 01

Astronomical circle instrument with telescope 02

Astronomical instrument dividing engine

Astronomical instrument mounting 01

Astronomical instrument mounting 02

Astronomical instrument mounting 03

Astronomical instrument parts 02

Astronomical instrument with circle

Astronomical instrument with circles

Astronomical instruments theodolite

Astronomical quadrants and sextants 01

Equatorial telescope

Herschel's forty foot telescope

Mural circle instrument on pier

Observatory dome and roof 01

Quadrants and sextants 05

Quadrants and sextants 06

Telescopes and eyepieces 01

Telescopes and eyepieces 02

Telescopes on stands 01

Telescopes on stands 02

Telescopes on stands 03

Telescopes on stands 04

Transit instruments 01

Transit instruments 04

Transit instruments 06

Astronomy instruments and orrery parts 01

Astronomy instruments and orrery parts 02

Astronomy orrery apparatus

Cluster of barnacles

Bivalve with long siphons

Limpet on a rock

Small snail crawling

Snail with raised tentacles

Barnacles on a bed

Warty sea slug 01

Snail with a flared lip

Tall spired snail

Bivalve with a long siphon

Ark shell with fringe

Cockle shell with foot

Winged shell with a foot

Frilled oyster shell

Coiled ribbed shell

Bivalve with a siphon

Shell on a leaf