406 



CATALOGUE. — HEAT, RADIATION. 



Hornblower on the nonconducting power of 

 fluids. Nich, VIII. I69. 



Radiant Heat. 



Construction of burning lenses and mirrors. 



See Optical Instruments. 

 Mariolte on the heat of a burning mirror. 



A. P. I. 223. 



Mariotte observes, that terrestrial heat is intercepted by 

 glass, while light is transmitted. Oeuvres. I. 



Homberg on a burning mirror. A. P. 1705. 

 H. 39. 



Little effect -was produced when the heat of the atmo- 

 sphere was considerable. 



Homberg on the ancient burning glasses. 

 A. P. 1711. H. 16. 



'^Lahire on the heat of the lunar rays. A. P. 

 1705. 340. 



Harris and Desaguliers on Viliette's con- 

 cave. Ph. tr. 1719. XXX. 970. 



It burnt less powerfully as it grew hot. 



Segntr de speculis Archimedeis. 4. Jen. 



1722. 

 Dufay's catoptrical experiments. A. P. 172G. 



115, 165. H.47. 

 Courtivron's catoptrical researches. A. P. 



1747. 449. 

 Buffon on burning mirrors. A. P. 1747. 



82. 1748. 305. 



Burnt wood at 209 feet, by 168 small plane mirrors. 

 Richmann on the heat of a pencil of rays. 



N. C. Petr. 111. 340. IV. 277. 

 It was nearly in the inverse ratio of the square of the dis- 

 tance from the focus. See Expansion. 



Nollet's experiments with concentrated solar 

 rays. A. P. 1757.551. H. 23. 



Zeiher on burning lenses. N. C. Petr. VII. 

 237. 



Pistoi on the heating of bodies by light. A. 

 Sienn. II. 126. 



Franklin on the effect of colours in the ad- 

 mission of heat. Letter Ivi. Roz. II. 381. 



Wolfe. Ph. tr. 17fi9. 4. 



Hoesen's mirrors melted a wheel nail in 3 seconds, a 

 pistole in 2. Hoffman used them opposite to each other, 

 and collected the heat radiating from a stove strongly 

 heated. 2 Sept. 1768. 



Watson on the heat admitted by blackened 

 bodies. Ph.tr. 1773.40. 



Found an elevation from 108° to 11 8°, by coating the 

 glass bulb of a thermometer with Indian ink. 



Lavoisier on the heating of coloured bodies. 



1772. ii. 614. 1773. H. 81. 

 Trudaine on his lens. A. P. 1774. Essai. 



It was observed, that the wood caught fire more towards 

 the extremity of the image than in the centre ; but this 

 was only from aberration, 70, 71. The diameter was 4 

 feet, the focal length about 1 1 . 



Cavallo's thermometrical experiments. Ph. 

 tr. 1780. 585. 



Found that a blackened thermometer rose about 10* 

 higher in the sun's rays, and showed some difference even 

 in the daylight. Found no heat from the moon. When 

 the balls of thermometers were coloured, the colours nearest 

 the violet showed the greatest heat. 



Marcorelle on thermometers in different si- 

 tuations. S. E. X. 85. 



In August, at Toulon, the sun's rays raised the thermo- 

 meter 8° or e°, and twice as much when it was surrounded 

 with other objects. Mairan found that the heat reflected 

 on a thermometer by plane mirrors was proportionate to 

 their number. 



Socin on the reflection of heat. Roz. XXVII. 



268. 

 *Pictet on the effect of colours, and on the 



reflection of invisible heat. Essais de 



physique. 

 Pictet's further experiments. Nich. 8. III. 



223. Giib. XIII. 120. 



The heat of a candle was intercepted by glass. 



*Privost sur r6quilibre du feu. 8. Genev. 



Gren. VI. Rozier. XXXVIII. 314. 

 Prevost on heat and its interception. Ph. tr.- 



1802. 403. 



Remarks on Herschel's experiments. 



T.Wedgwood. Ph.tr. 1792.370. 



