"Further Expierments with a new Register-Pyrometer for Measuring the Expansion of Solids" , from the "Philosophical Transactions"

DANIELL, J. Frederic. "Further Experiments with a new Register-Pyrometer for Measuring the Expansion of Solids" , London, extracted from the "Philosophical Transactions", vol 131, 1831, pp 443-458. John Frederic Daniell was born in 1790 in London and is known for inventing an improved battery that replaced the voltaic cell, the Daniell cell. Daniell was a chemist and meteorologist with several important scientific contributions. In 1820 he invented a dew-point hygrometer for measuring atmospheric humidity. His research led to improvements in greenhouses, showing the importance of humidity. In 1831 Daniell became the first professor of chemistry at the new King's College in London. A year later he received the Rumford Medal of the Royal Society for his invention of a new pyrometer, for measuring heat, and for his papers detailing its uses.