29(5 



CATALOGUE. — PHYSICAL OPTICS. 



Gr'iiber iiber strahlenbrechung und abpral- 



lung. 4. Diesd. 1787. 

 •\Marat sur la lumi^re. 8. Par. 1788. R. S. 



Extr. Roz, XXXII. 140. 



Marat denies the different refrangibility of light ; attri- 

 butes the appearance of colours to inflection by the margin 

 of the sun, or by other objects. 



Dree on Marat's experiments. Roz. XVIII. 



402. 

 Achaid on the prismatic composition of 



colours. A. Berl. 1788. 14. 

 Obbiezzioni alia teoria di Newton intorno a' 



colon. Piacenz. 1791. 



Ace. A. Berl. 1792. H. 19- 



The anonymous author is probably Mr. Consonni : he 

 maintains, that there are but three colours, but that each is 

 spread a little over the adjoining one in refraction. 



Nordmark on dispersion. Sv. Vetensk. N. H. 



XV. 113. 

 Blair on the unequal refrangibility of light. 



Ed. tr. III. 3. See Telescopes. 

 AI. Young on the number of colorific rays. 



Ir. tr. VII. 1 19- Nich. IV. 385. 



Makes only red, yellow, and blue rays, and some of each 

 scattered through the spectrum. 



Liidicke on showing the composition of white 



light. Glib. V. 272. 

 *PIerschelon heat and light. Ph. tr. 1800. 



Gilb. VII. 137. 

 fLeslie on light and heat. Nich. IV. 344, 



416. Gilb. X. 88. 



Putter's invisible rays. Gilb. VII. 527. XII. 



409. 

 Discovered 22 Feb. 1801. 



Vicktred on Hitter's invisible rays. B. See. 



Phil. n. 73. Nich. 8. V.255. 

 Englefield on the separation of light and 



heat by refraction. Journ. R. I., I. Nich. 



8. III. 125. 

 *VVollaslon on the division of the spectrum. 



Ph. tr. 1802. 365. 



Total or internal Reflection. 

 fBrougham. Ph. tr. 1796. 227. 1797. 352, 



Nich. I. 551. 

 *Prevost's remarques d'optique. Ph. tr. 1798. 



31 1. Journ. Phys. XLIX. 273. Nich. III. 



222. Gilb. V. 129. 

 In defence of Newton, against Mr. Brougham. 

 Prevost's further remarks. Journ. Phys. 

 XLIX. Gilb. V. 147. 



Tables of Refractive and Dispersive Powers* 



Principally from WoUaston and from Ca- 



vallo's tables. 



A Chemical Appendix to Physical Optics. 



Index of refraction. 



A vacuum - - 1.00000 



Atmospheric air. Lowthorp 1.00036 



Hawksbee 1.00033 



From Bradley 7 „ 



> 1.000276 

 B.29.6, Th.50°.3 ^ 



Ice, by observation. W. 7 , - ., 



T , ^ 1 , • r 1 , V J- 1-310 

 Ice, by calculation tromhalos. i.} 



Water. W. H. > 



Vitreous humour. \\.y 



Lime water. C. - (1.334) 



Well water. C. - - 1.336 



Spirit of hartshorn. C. - 1.337 



Solution of caustic ammonia. C. 1.349' 



Solution of soda. C. - 1 .352 



Ether. VV. - - 1.358 



French brandy. C. - ^ ' , 



•^ (.(1.368) 



Albumen. W. - - I.36 



Hawksbee - (1.351) 



Alcohol. W. - - 1.37 



C. - - 1.371 



Distilled vinegar. Hawksbee. 1.372 



Euler - (1.344) 



Saturated solution of salt. C. 1.375 



Sahl, water 27. C. - - (1.348) 



Solution of sal ammoniac 1.382 



