Description
Plate 20 from The European in India by Charles D'Oyly
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)
Whilst passports were not required for Britains travelling to France
The specimens look red most by candle-light
Joseph Chamberlain who cited the blow to 'the security of the Empire' as his primary reason
Button Making in France at Time of Louis XIV Size:XL: 100 x 70cm Plate 20 from The European
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