PART I. AUTHOR-INDEX. I 53 



Schumann, V. On a new method of preparing plates sensitive to the 

 ultra-violet rays. Astrophys. J. 3 (1896) 220-226, 387-394; 

 4 (1896) 144-155. 



. Ueber den Einfluss einer unsymmetrischen, veranderlichen 



Refraction auf die Polhohenschwenkung. Astron. Nachr. 141 



(1896) 81-83. 



. Von den brechbarsten Strahlen und ihrer photographischen 



Aufnahme. Jahrb. f. Photogr. 11 (1897) 20-22, 24-25; Beibl. 



(1897) 839. 973- 



. Von den brechbarsten Strahlen und ihrer photographischen 



Aufnahme. Eder's Jahrb. 12 (1898) 20; Beibl. (1898) 841. 



Schunck, C. A. Quantitative investigation of the absorption spec- 

 trum of the blue potassium chromium oxalate. Chem. News 51 

 (1885) 155, abs.; read before the Chem. Phys. Soc. London, 

 March 19, 1885. 



and Marchlewski. Absorption Spectra of Chlorophyll 



Colours. Proc. Roy. Soc. 59 (1896) 235. 



. A photographic investigation of the absorption spectra 



of Chlorophyll and its derivatives in the Violet and Ultra- Violet 

 region of the Spectrum. Proc. Roy. Soc. 63 (1898) 389-396; 

 Beibl. (1898) 776. 



The yellow colouring matters accompanying Chloro- 



phyll and their spectroscopic relations. Proc. Roy. Soc. 65 



(1899) 177-186. 

 Schur, W. Helligkeitsschatzungen von T (nova) Aurigae. Astron. 



Nachr. 138 (1895) 109-111. 

 . Beobachtungen der veranderlichen Sterne S Cephei, >/ 



Aquilae und /i Lyrae. Astron. Nachr. 137 (1895) 297-329. 

 . Determination of the diameter and compression of the 



planet Mars from observations with the Repsold heliometer of 

 the Royal Observatory, Gottingen. Mon. Not. 57 (1897) 150- 



151- 

 Schuster, A. On Harmonic Ratios in the Spectra of Gases. Proc. 



Roy. Soc. 31 (1880-1881) 337. 

 . Experiments with Lord Rayleigh's Colour Box. Proc. 



Roy. Soc. 48 (1890) 140-149; Beibl. (1890) 1107. 

 . The elementary treatment of refraction problems. Phil. 



Mag. (5) 31 (1891) 77-86; Beibl. (1891) 561. 

 . Ya-t-il de I'oxygene dans I'atmosphere du Soleil? C.-R. 



118 (1894) 137-138; Beibl. (1894) 6562. — See Duner. C.-R. 117 



(1893) 1056-1059. 



