Vol. XXVIII. Nr. 191. 



William Crookes : On the IHumination of Lines of Molecular 

 Pressure, and the Trajectory of Molecnles. William Thomson: On a 

 Machine for the Solution of Simultaneous Linear Equations. James Thom- 

 son: On the Flow of Water in Uniform Regime in Eivers and other 

 Open Channels. W. E. Ayrton : The Magic Mirror of Japan, Part I. 

 J. Hopkinson : On the Torsional Strain which remains in a Glass Fibre 

 after release from Twisting Stress. Samuel Haughton: Note in cor- 

 rection of an Error in the Dr. Haughton's Paper „Notes on Physical 

 Geology. No.V." J. E. H. Gordon : Measurements of Electrical Constants. 

 J. N. Lockyer: Researches in Spectrum Analysis in connexion with the 

 Spectrum of the Sun. Sir W. R. Grove : Note of an Experiment on 

 the Spectrum of the Electric Discharge. George H. Darwin: On the 

 Precession of a Viscous Spheroid, and on the Remote History of the Earth. 

 Derselbe: Problems connected with the Tides of a Viscous Spheroid. 

 Arthur Downes and Thomas P. Blunt: On the Influence of Light 

 upon Protoplasm. John Tyndall: Note on the Influence exercised by 

 Light on Organic Infusions. W. K. Parker: On the Structure and De- 

 velopment of the Skull in the Lacertilia. Part I. On the Skull of the 

 Common Lizards (Lacerta agilis, L. viridis, and Zootica vivipara). 

 Sydney H. Vines: On the Chemical Composition of Aleurone Grains. 

 Vol. XXVIII. Nr. 192. 



W. N. Hartleyand A. K. Huntington: Researches on the 

 Absorption of the Ultra — Violet Rays of the Spectrum by Organic 

 Substauces. George Francis Fitzgerald: On the Electromagnetic 

 Theory of the Reflection and Refration of Light. E. Frankland: On 

 Dry Fog. Balfour Stewart and Wilhelm Dodgson : Note on the 

 Inaequalities of the Diurnal Range of the Declination Magnet as re- 

 corded at the Kew Observatory. Sir John Conroy: Some Experiments 

 on Metallic Reflexion. George Thin: On some Points connected with 

 the Anatomy of the Skin. Derselbe: On fiynline Cartilage and de- 

 ceptive appearances produced by Reagents, as observed in the exami- 

 nation of a Cartilaginous Tumour of the Lower Jaw. F. W. Pavy: 

 Volumetrie Estimation of Sugar by an Ammoniated Cuprie Test giving 

 Reduction without Precipitation. William Miller: On the Effect of 

 Strong Induction-Currents upon the Structure of the Spinal Cord. George 

 J. Romanes: Concluding Observations on the Locomotor System of 

 Meduse. Edmund J. Mills and T. U. Waltou; Researches on Che- 

 mical Equivalence. Part L Edmund J. Mills and James Hogarth: 

 Researches on Chemical Equivalence. Part II. Dieselben: Researches 

 pn Laotin, J, B, Hannay: Microrheometer, T, Melard Reade: Lime- 



