CATALOGUE. PHYSICAL OPTICS. 



291 



On illumination. M. Tur. IV. 1788. lix. 

 Wedgwood. Ph. tr. 1792.279- 



Found that air not luminous made a wire red hot. 

 Count UuniCord on the light of luminous 



bodies. Ph. tr. 1794. 67. 



In order to produce a given quantity of light, we must 

 burn of wax loo, of tallow lol, of oil, in Argand's lamp, 

 110, in a common lamp 129, of an ill snuffed tallow candle 

 22g parts by weight. Flame is very transparent. ! 



Hassenfratz on the light produced in com- 

 bustion. Ann. Ch. XXIV. 78. 



Differs from Count Rumford in not preferring Argand's 

 lamp. 



Keir's patent hydrostaticlamp. Repert. VIII, 

 289. Nich. III. 467. Gilb. VI. 96. 



Thiville's patent lamp. Repert. XIV. 9. 



Smethurst's patent lamp, with lenses. Rep. 

 XIV. 84. 



White's patent lamp. Repert. XV. 93. 



More easily cleaned than Argand's. 



Argand's lamp. Montucla and Lai. III. 564. 

 Thermolamp. Montucla and Lai. III. 565. 



Gilb. X. 491. 

 Thilorier's phloscope. Montucla and Lai. 



III. 565. 



The flame is led through a tube of glass. 



Guyton's report on Garcel's lamp. Ann. Ch. 

 XXXVIII. 135. Nich. 8. II. 108. 



With a pump and a contracted chimney 9 produced a 

 heat of 7° Wedgwood, 505.6° cent, or 042° F. 



Davy on light produced under water. Journ. 



R. I., I. Gilb. VL 109. 

 Kretschmar's thermolamp. Gilb. XIII. 498. 

 B'linger's thermolamp. Gilb. XV. 231.. 

 Hermstadt on the light of candles. Repert. 



ii. I. 59. 

 Dawson's patent lamp for carriages. Repert. 



ii. 11.401. 

 A photophorus. Repert. ii. III. 372. See 



Catoptric Instruments. 

 E. Walker on the light of candles. Nich. 8. 



III. 272. IV.40. VI. 90. Gilb. XIII. 240. 



Finds it nearly proportional to the quantity of tallow 

 consumed, when the combustion is perfect. Recommends 

 that candles be burnt in an inclined position. 



Edelcrantz's Statical lamp. Nich. 8. V. 93. 

 Paul's lamps with reflectors. Nich. 8. V. 



133. 

 On the light of wax candies of different di- 

 mensions. Nich. 8. V. 219. 

 A small candle gave about J, more light from the same 

 weight than a large one. " 



Boswell's lamp for tallow. Nich. IX. 105. 



Lambert found, that the light emitted by a shining surface, 

 in any direction is as the sine of the angle of inclination ; 

 so that the density is equal in every direction. He adds an 

 illustration from theory. Photometr. § 81. 



Lambert thinks, that the moon's light cannot exceed 

 jjjj^gth of the sun's, from theory ; Leslie makes it much 

 greater, and thinks, with some of the ancients, that the 

 moon must have the property of a solar phosphorus. 



The solar light has been attributed to an atmosphere by 

 Gascoigne, by the author of Experiments and Observations 

 on light and colours. 8. Lond. 1780. p. 162. by King, and. 

 by Herschel. 



Light attending Decomposition without sen-^ 

 sible Heat. 



Spontaneous Light. 



IBartholinus de luce animalium. 1G69. M. B. 

 Beale on the light offish. Ph. tr. 1665—6. 

 I. 226. On the light of flesh. Ph. tr. 1676.. 



XI. 599. 



Flesh that had been killed but a day, in February, became 

 luminous. 



*Boyle on the light offish, wood, and flesh. 

 Ph. tr. 1667. n. 581, 605. 1672. VIL 

 5107. Works. III. 304. 

 Found that the light was extinguished in a vacuum. 



Marsigli Storia del mare. Histoire de loi 



mer. 

 Bourzes on the light in the wake of ships.. 



Ph. tr. 1713. XXVm. 230. 



