Fluorescent Alcohol Thermometer by C. V. Boys, 1880-1885

Quartz Fibres by Sir Charles Vernon Boys, 1887-1892

Six small pieces of quartz rod

Fluorescent Alcohol Thermometer by C. V. Boys, 1880-1885

'Rainbow Cup' scientific toy

Boys' original 'Rainbow Cup'

Length of Boys' Quartz Fibre in Display Case, 1887-1892

Model of a machine for solving equations

Ellipsograph by Sir Charles Vernon Boys, c 1880-1920.

Model of a polar planimeter

Instructions for "The Rainbow Cup" educational toy

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