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PHILOSOPHICAL TRANSACTIONS. Vol. CLXXIX (1888). 

 The following separate Papers are now ready : — 

 Seeies A. 



(Containing Papers of a Mathematical or Physical Character.) 



18. The Influence of Stress and Strain on the Physical Properties of Matter. 



Part I. — Elasticity (continued). The Effect of Magnetisation on the Elasti- 

 city and the Internal Friction of Metals. By Heebebt Tomlinson, B.A. 

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19. On the Spectrum of the Oxy -hydrogen Elame. By Gr. D. Liteing, M.A. 



F.E.S., Professor of Chemistry, and J. Dewae, M.A., F.R.S., Jacksonkn 

 Professor, University of Cambridge. Price 3s. 



20. On the Motion of a Sphere in a Yiscous Liquid. By A. B. Basset, M.A. 



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21. On Hamilton's Numbers. Part II. By J. J. Sylyestee, D.C.L., F.R.S., 



Savilian Professor of G-eometry in the University of Oxford, and James 

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22. Report on Hygrometric Methods ; First Part, including the Saturation Method 



and the Chemical Method, and Dew-point Instruments. By W. N. Shaw, 

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23. On the Diameters of a Plane Cubic. By J. J. TYalkeb, M.A., F.R.S. Price 



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2i. On the Changes Produced by Magnetisation in the Dimensions of Rings, and 

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25. On the Ultra- Yiolet Spectra of the Elements. Part III. — Cobalt and Nickel. 



By Gr. D. Liyeing, M.A., F.R.S. , Professor of Chemistry, and J. Dkwae, 

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26. The Conditions of the Evolution of Grases from Homogeneous Liquids. By 



Y. H. Yelet, M.A., University College, Oxford. Price Is. 



27. On the Induction of Electric Currents in conducting Shells of small Thicknesss 



By S. H. Buebtjby, M.A., formerly Fellow of St. John's College, Cambridge. 

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28. Magnetic Qualities of Nickel. By J. A. EwiNG, F.R.S., Professor of Engineer- 



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29. Magnetic Qualities of Nickel (Supplementary Paper). By J. A. EwiNG, 



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30. On Certain Mechanical Properties of Metals considered in relation to the 



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