JOHN WILLIAM DKAPEK. 



1843. 



On the rapid detithoni/ing ])owor of certain gases and vapors, and on an 

 instantaneous means of producing spectral appearances. Phil. Mm/., Ill, 

 xxii, 101-105, March, 1K43. (Sturyeon'x Ann. Elcc., x, 402-4(55. Frorirp 

 A T o/;-r/,, II, xxv, :J40-:J43, 1843.) 



On a new system of inactive tithonographic spaces in the solar spectrum 

 analogous to the fixed lines of Fraunhofer. Phil. May., III, xxii, 300-364, 

 May, 1843. 



On the tithonotype, or art of multiplying daguerreotypes. Phil. May., 

 Ill, xxii, 305, May, 1843. 



On the decomposition of carbonic-acid gas and the alkaline carbonates by 

 the light of the sun, and on the tithonotype. Proc. An/. Phil. Soc., iii, 111- 

 114, May, 1843. Phil. Mat/., Ill, xxiii, 161-170, September, 1843. (Rep. 

 Jirif. Axxoc., 1843, Pt. 2, 33-34; Chemist, 1843, iv, 444-445 ; Am. J. Sri., 

 I, xlvi, :5!)8, 1844; Ann. < 1 hu, /%*., xi, 214-228, 1844; J. Pr. Ckem., xxxi, 

 21-30, 1844; Napoli Rendi Conto, iii, 297-300, 1844.) 



On the law of the conducting power of wires. Am. J. Sci., I, xlv, 392, 

 .July-September, 1843 (Arc/do, de I'Elec., vi, 329-330, 1844). 



On a change produced by exposure to the beams of the sun in the proper- 

 ties- of an elementary substance. Rep. Brit. Assoc., 1843, Pt. 2, 9. Phil. 

 Ma;/., Ill, xxiii, 388, November, 1843. (Chemist, iv, 442-443, 1843; Am. 

 J. ,SW,, I, xlvi, 390, January-March, 1844.) 



Description of the tithonometer [chlorhydrogen photometer] ; an instru- 

 ment for measuring the chemical force of the indigo-tithonic rays. Phil. 

 May., Ill, xxiii, 401-405, December, 1843; Am. J. Sci., I. xlvi, 217-232, 

 January-March, 1844. 



1844. 



On Mr. Hunt's book entitled "Researches on Light." Phil. May., Ill, 

 xxv, 49, July, 1844. 



On tithonizcd chlorine. (Read at the meeting of the British Association 

 in Cork in 1843.) Phil. May., Ill, xxv, 1-10, July, 1844. 



Further considerations on the existence of a fourth imponderable. Phil. 

 Ma,/., Ill, xxv, 103-110, August, 1844. 



Note on the decomposition of carbonic acid by the leaves of plants under 

 the influence of yellow light. Phil. May., Ill, xxv, 169-173, September, 

 1844. 



1845. 



Is capillary action an electrical phenomenon? Phil. May., Ill, xxvi, 

 185-189, March, 1845. 



On the interference spectrum and the absorption of the tithonic rays. 

 Phil. Mm/., Ill, xxvi, 405-478, June, 1845. 



On the allotropism of chlorine as connected with the theory of substitu- 

 tions. Am. J. Sci.., I, xlix, 340-308, July-September, 1845. Phil. Ma,,., 

 Ill, xxvii, 327-340, November, 1845. (Kibl. Universelle, Ix, 305-379, 1845; 

 J. Pr. Chem., xxxvii, 103-109, 1840; J. Pharm., ix, 398-399, 1840.) 



385 



