Insulated Mercury and Alcohol Thermometer, 1830-1840

1830-1840

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

1880-1885

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

1880-1885

Minimum Alcohol Thermometer by Pastorelli & Co., 1875

1875

reconstruction of Florentine Thermometer originally made 1657-1665

1657-1665 (original)

Insulated Alcohol Thermometer, 1830-40

1830-1840

Reconstruction of Florentine Thermometer, originally made 1657-1665

1657-1665 (original)

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

1880-1885

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

1880-1885