Plate CCCCXLII. Sealights

Engraver George Aikman

Editor Professor Macvey Napier (1776 - 1847)

Publisher A & C Black Ltd (founded 1807)

Date1830-1842

Object number00019710

NameSteel engraving

MediumInk on paper

DimensionsOverall: 273 x 210 mm, 0.008 kg

ClassificationsEphemera

Credit LineANMM Collection

Terms

DescriptionThis engraving featured in the 7th edition of the Encyclopaedia Britannica published between 1830 and 1842. The plate features nine illustrations relating to sea-lights, including a parabolic reflector and lamp with sliding apparatus; a revolving dioptric light of first order section; a fixed dioptric light of first order with mirrors; an annular lens; and Bordier Marcet's reflector. This engraving probably featured in the 7th edition ‘Encyclopaedia Britannica: A Dictionary of Arts, Sciences, and General Literature’ published in 1842.