Vectores de intricate

Astronomical instrument parts 02

Astronomical instrument with circle

Astronomical instrument with circles

Astronomical instruments theodolite

Equatorial telescope

Herschel's forty foot telescope

Mural circle instrument on pier

Observatory dome and roof 01

Quadrants and sextants 05

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

Astronomy instruments and orrery parts 02

Astronomy orrery apparatus

Cluster of barnacles

Limpet on a rock

Snail with raised tentacles

Barnacles on a bed

Snail with a flared lip

Ark shell with fringe

Frilled oyster shell

Coiled ribbed shell

Bivalve with a siphon

Shell on a leaf

Marked olive shell 04

Shell on a rock

Ribbed coiled shell 03

Coiled shell from above 02

Spined conch shell

Coiled shell from above 04

Shell with the animal out

Cowrie shell

Spotted spired shell

Ribbed whelk shell

Spined murex shell

Bristled shell

Spined shell from above

Spined cockle shell 03

Ribbed cockle shell 08

Ribbed cockle shell 01

Ribbed clam shell 01

Brittle star 02

Basket sea urchin

Sea urchin and shells

Carrick bend 03

Carrick bend 01

Carrick bend 02

Rope lashed to a spar 01

Whipped rope knot

Lashed spars

Knotted rope ends 02

Rope bend diagram 04

Rope on a toggle 02

Flat sinnet 03

Chain sinnet 02