



Physics, 



Laurance, L. Simple Calculations 



for Students of Visual Optics. 



De y 8vo . Pp . 72 . N .D . Hatton 



Press. 4s. Qd. 

 General and Practical Optics. 



3rd edn. Demy 8vo. Pp. 370. 



1920. Hatton Press. 21s. 

 Visual Optics and Sight Testing. 



2nd edn. Demy 8vo. Pp. 432. 



1920. Hatton Press. 21s. 



Orford, H. Modern Optical Instru- 

 ments. Cr. 8vo. Pp. 100. 1919. 

 Pitman . 4s . 



Rohr, M. Von. (edited by). Geo- 

 metrical Investigation of the Forma- 

 tion of Images in Optical Instru- 

 ments: embodying the results of 

 scientific researches conducted in 

 German Optical Workshops (Form- 

 ing Vol. I. of "The Theory of 

 Optical Instruments.") Trans- 

 lated by R. Kanthack. 8vo. Pp. 

 636. 1920. H.M.S.O. 45s. 



Steinheil , A . , and Voit , E . Applied 

 Optics : The Computation of Optical 

 Systems. Translated from the 

 German by J . W . French . 2 Vols . 

 Fcap. 4to. Vol. 1. Pp. 161. 

 1918. Vol. 2. Pp. 207. 1919. 

 Blackie. 15s. per vol. 



Whittaker, E. T. The Theory of 

 Optical Instruments. 2nd edn. 

 Demy 8vo. Pp. 80. 1915. 

 Cambridge University Press. 3s. Qd, 



Wright, L. Optical Projection. A 

 Treatise on the use of the Lantern 

 in Exhibition and Scientific; Demon- 

 tration. 5th edn. Revised by R. 

 S. Wright. 2 parts. Part 1. 

 The Projection of Lantern Slides. 

 Cr. 8vo. Pp. 95. 1920.| Long- 

 mans. 4s. Qd. 



g . Colour : Spectra . 



Abney , Sir W . de W . Researches in 

 Colour Vision and the Trichromatic 

 Theory. 8vo. Pp. 432. 1913. 

 Longmans . 25s . 



Liveing, G. D., and Dewar, Sir J. 



Collected Papers on Spectroscopy . 

 Roy. 8vo. Pp.582. 1915. Cam- 

 bridge University Press. 30s. 



102 



Lockyer, Sir J. N. Studies in 

 Spectrum Analysis. 6th edn. Cr. 

 8vo. Pp. 270. 1904. Kegan 

 Paul. 8s. Qd. 



Lovibond, J. W. Light and Colour 

 Theories, and their Relation ta 

 Light and Colour Standardization. 

 8vo. Pp.90. 1915. Spon. 7s. Qd. 



An Introduction to the Study of 



Colour Phenomena, explaining a 

 New Theory of Colour based entirely 

 on experimental facts, with applica- 

 tions to scientific and industrial 

 investigations. 8vo. Pp. 48, 1O 

 Plates. 1905. Spon. 7s. Qd. 



Lyrnan , T . The Spectroscopy of the 

 Extreme Ultra-Violet . 8vo. Pp. 

 142. 1914. Longmans. 6s. Qd. 



Mees , C . E . K . An Atlas of Absorp- 

 tion Spectra. Cr. 8vo. Pp. 85. 

 1909. Longmans. 6s. Qd. 



Parsons, J- H. An Introduction to 

 the Study of Colour Vision. Roy. 

 8vo. Pp. 316. 1915. Cambridge 

 University Press % 12s. Qd. 



Rood, O. N. Colour: a Text-Book 

 of Modern Chromatics, with Appli- 

 cations to Art and Industry. 5tb 

 edn. Cr. 8vo. Pp. 338. 1910. 

 Kegan Paul. 7s. Qd. 



Roscoe, Sir H. E., and Schuster,. 

 Sir A. Spectrum Analysis. 4th 

 edn. 8vo. Pp.468. 1885. Mac- 

 millan. 25s. 



Silberstein, L. Report on the 

 Quantum Theory of Spectra . Demy 

 8vo. Pp.46. 1920. AdamHilger. 

 5s. 



Watts, W. M. An Introduction to 

 the Study of Spectrum Analysis. 

 8vo. Pp.336. 1904. Longmans. 

 12s. 



Zeeman,P. Researches in Magneto - 

 Optics. 8vo. Pp. 236. 1913. 

 Macrnillan. 7s. Qd. 



b. Sound. 



Barton, E. H. A Text Book on 

 Sound. 2nd edn. Ex.Cr.8vo. Pp. 

 701. 1919. Macmillan. 12s. 6d. 



