PART I. AUTHOR-INDEX. H^ 



Nichols, E. L. and W. Franklin. Spectrophotometric comparison of 



artificial sources of light. Amer. J. Sci. (3) 38 (1890) 100-114; 



Beibl. (1890) 39. 

 and B. W. Snow. The influence of temperature on the 



colour of pigments. Phil. Mag. (5) 32 (1891) 401-424; Beibl. 



(1892) 361. 

 , . The character of the light emitted by incandescent 



zincoxid. Phil. Mag. (5) S3 (1892) 19-28; Beibl. (1892) 427- 



The selective absorption of light by optical glass and 



feldspar. Phil. Mag. (5) 33 (1892) 379-381 ; Beibl. (1892) 608. 

 . Age-coating in incandescent lamps. Amer. J. Sci. (3) 



44 (1892) 277-286. 

 . The transmission spectra of certain substances in the 



infra-red. Phys. Rev. i (1893) 1-18; Beibl. (1893) 1062. 

 and Mary L. Crehore. Studies of the Lime Light. Phys. 



Rev. 2 (1894) 161-170; Beibl. (1895) 565. 

 . A new form of spectrophotometer. Phys. Rev. 2 (1895) 



138-141; Beibl. (1895) 241. 

 . The distribution of energy in the spectrum of the Glow 



Lamp. Phys. Rev. 2 (1895) 260-276; Beibl. (1895) 783. 

 . A method for the study of transmission spectra in 



the ultra-violet. Phys. Rev. 2 (1895) 298, 305; Beibl. (1895) 



426. 

 and Mary C. Spencer. The influence of temperature upon 



the transparency of solutions. Phys. Rev. 2 (1895) 344-360; 



Beibl. (1895) 493- 

 . Das Verhalten des Quarzes gegen langwellige Strahlung 



untersucht nach der radiometrischen Methode. Sitzb. Akad. 



Berlin (1896) 1183-1196; Phys. Rev. (1897) 297-313. 

 Niewenglowski, G. H. Observations k propos d'une note recente 



de M. Le Bon sur la lumiere noire. C.-R. 122 (1896) 232-233, 



385. — See Le Bon, ibid. 188, 233, 386. 

 . La photographic de I'invisible au moyen des rayons X 



ultra- violets, de la phosphorescence et de I'effieuve electrique. 



Paris: Desforges, 1896, 23 pp. 

 Noack, K. Verzeichniss fluorescirender Substanzen nach der Farbe 



des Fluorescenzlichtes geordnet mit Literaturnachweisen. Ges. 



zur Beford. d. Naturwiss. zu Marburg 12 (1887) 2 e Abhandl., 



155 PP- 

 Nobert, F. A. Die Interferenzspectrumplatte. Ann. Phys. 85 (1852) 



80; Phil. Mag. (4) I (1852) 570; Jahresb. (1852) 134. 



