PHILOSOPHICAL TRANSACTIONS. 



Contents op Paet I, 1881. 



On the Structure and Development of the Skull in the Batrachia — Part III. 

 By W. K. Parker, F.R.S. 



Contents op Part II, 1881. 



II. The Cochlea of the OrnithorhyncTius platypus compared with that of ordinary 

 Mammals and of Birds. By Urban Pritchard, M.I)., F.R.C.S. 



III. On the Organization of the Fossil Plants of the Coal-Measures. — Part XI. 



By W. C. Williamson, F.R.S. 



IV. On the Induction of Electric Currents in Infinite Plates and Spherical Shells. 



By C. Niven, M.A. 



Y. Electrostatic Capacity of Glass, II, and of Liquids. By J. Hopkinson, 

 M.A., D.Sc., F.R.S. 



VI. On the Forty- eight Coordinates of a Cubic Curve in Space. By William 

 Spottiswoode, Pres. R.S. 



VII. On the Viscosity of Gases at High Exhaustions. By William Crookes, 

 F.R.S. 



Note on the Reduction of Mr. Crookes's Experiments on the Decrement of the 

 Arc of Vibration of a Mica Plate oscillating within a Bulb containing 

 more or less Rarefied Gas. By Professor G. G. Stokes, Sec.R.S. 



VIII. On the Electrical Resistance of Thin Liquid Films, with a revision of 

 Newton's Table of Colours. By A. W. Reinold, M.A., and W. Rucker, 

 M.A. 



IX. On the Tidal Friction of a Planet attended by several Satellites, and on the 

 Evolution of the Solar System. By G. H. Darwin, F.R.S. 



X. On the Thermal Conductivity of Water. By J. T. Bottomley. 



XI. Description of some Remains of the Gigantic Land-Lizard (Megalania prisca, 

 Owen), from Australia. — Part III. By Professor Owen, C.B., F.R.S., he. 



Price £1 10s. 



PHILOSOPHICAL TRANSACTIONS. 

 Part III, 1880, price £1 1*. 

 Part I, 1881, price £2 10s. 

 Part II, price £1 10s. 



Extra volume (vol. 168) containing the Reports of the Naturalists attached to the 

 Transit of Venus Expeditions. Price £3. 



Sold by Harrison and Sons. 



Separate copies of Papers in the Philosophical Transactions, commencing with 1875, 

 may be had of Triibner and Co., 57, Ludgate Hill. 



