72 



19. On the Colouring Matter of Bonellia viridis. i fig. Quart. 

 Journ. Mic. Sri., Vol. XV., N.S., p. 166. 8vo. 



London, 1875. 



20. On the Chromatological Relations" of Spongilla fluviatilis. 

 Quart. Journ. Mic. Sci., Vol. XV., N.S., p. 47. 8vo. 



London, 1875. 



21. Spectrum Microscopic Analysis. Spectrum Microscope. 

 Of examining Substances by the Spectrum Microscope. 

 Crystals. Blowpipe Beads. Examination of Solutions. 

 General Outline of Comparative Chromatology. Spec- 

 trum Microscope applied to Physiological Enquiries. 

 Improvements in the Spectrum. Method of Detecting 

 Blood. From Beale on How to Work with the Micro- 

 scope, Chap. XI., p. 198. 8vo. 1880. 



22. On the Microscopical Structure of Iron and Steel. 6 plates. 

 Journal of the Iron and Steel Institute, No. i, p. 255. 

 8vo. London, 1887. 



23. On the Microscopical Structure of Freshwater Marls and 

 Limestones. 8vo. N.D. 



Statuts de la Societe' Beige de Microscopic fondee le 12 juillet, 

 1874. 8vo. Bruxelles, 1874. 



Steel, Thomas. Method of Mounting Objects with Carbolic 

 Acid. From Scientific Enquirer, Vol. I., p. 41. 



London and Bath, 1886. 



Stephenson, J. W., F.R.A.S. Observations on the Optical 

 Appearances presented by the inner and outer layers of 

 Coscinodiscus when examined in Bisulphide of Carbon 

 and in Air. Month. Mic. Journ., Vol. X. i plate. 

 8vo. London, 1873. 



2. Measurement of Angular Aperture, i plate. Month. Mic. 

 Journ., No. LXXIX., p. 3. 8vo. London, 1875. 



3. Stephenson's Erecting Binocular, with illustration. Month. 

 Mic. Journ., Vol. VIL, p. 167. 8vo. London, 1872. 



