The Bakerian Lecture. Contributions to Molecular Physics, Being the Fifth Memoir of Researches on Radiant Heat in Philosophical Transactions of the Royal Society, 1864. Received March 17, 1864, Read March 17, 1864, pp. 327-368

London: Taylor and Francis, 1864. 1st Edition. FIRST EDITION EXTRACT OF ONE OF A GROUNDBREAKING SERIES OF PAPERS (OR ‘MEMOIRS’) JOHN TYNDALL WROTE AS HE INVESTIGATED THE ABSORPTION OF RADIANT ENERGY BY GASES.

In these papers, Tyndall demonstrates the first quantification and demonstration that atmospheric gases are infrared emitters, in other words, that they emit heat. The 1861 paper “On the Absorption and Radiation of Heat” is in a bound volume and we offer it separately. The ‘memoir’ offered here, the ‘The Bakerian Lecture. Contributions to Molecular Physics, Being the Fifth Memoir of Researches on Radiant Heat’, “examines among othe rthings the penetrative power of the heat radiated from various flames, and shows that such heat is absorbed with especial facility by the gases which result from the combustion.

“Professor Tyndall concludes from his researches that, as a general rule, the opacity of a substance with respect to radiant heat from a source of comparatively low temperature increases with the chemical complexity of its molecule; and he has given some remarkable instances in which the law is found to be true. Whatever may be thought of our ability to explain the law in the present state of our knowledge respecting the molecular constitution of bodies, the law itself is in any case highly remarkable” (Proc. Roy. Soc., Vol. 13, 516).

In addition to being asked to give the Bakerian Lecture (obviously this paper) in 1864, Tyndall was in the same year also awarded the Rumford Medal from the Royal Society for his work “on the transmission and absorption of light and heat in vapors and gases” (DeYoung, A Vision, 32). Item #684

London: Taylor & Francis. 4to. Extracted from the Philosophical Transactions of the Royal Society, Volume 154, 1864. Several illustrations. 11 x 8.75 inches. Complete. Clean and bright. Near fine condition in every way.

Price: $90.00