Description
London Published Jan 1st
A family at the seaside
Production continued until 1955
at the bottom of the Great Depression
Colours observed within layers of mica (figures a-f) with concentric circles of sixteen colours based upon Isaac Newton's observation of colours produced at the contact of two telescope object-glasses (figure g)
Portrait of Augustin Pyramus de Candolle Product:Greetings card London Published Jan 1st
Exchange/Return Notes
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