PHILOSOPHICAL TE A NS ACTIONS. 



Part I, 1885. 



Contents. 



I. On the Structure and Development of the Skull in the Mammalia. — Part II. 

 — Edendata. By William Kitchen Parker, F.E.S. 



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

 — Insectivora. By William Kitchen Parker, F.E.S. 



Price £2 10.?. 



Part II, 1885. 



III. On the Connexion between Electric Current and the Electric and Magnetic 



Inductions in the surrounding Field. By J. H. Poynting, M.A. 



IV. On some Applications of Dynamical Principles to Physical Phenomena. Bv 



J. J. Thomson, M.A., F.E.S. 



V. On the Constant of Magnetic Rotation of Light in Bisulphide of Carbon. 

 By Lord Eayleigh, M.A., D.C.L., F.E.S. 



VI. The Theory of Continuous Calculating Machines and of a Mechanism of this 

 class on a New Principle. By Professor H. S. Hele Shaw. 



VIT. On Beds of Sponge-remains in the Lower and Upper Grreensand of the South 

 of England. By George Jennings Hinde, Ph.D., F.G-.S. 



VIII. Magnetisation of Iron. By John Hopkinson, M.A., D.Sc, F.E.S. 



IX. The Absorption Spectra of the Alkaloids. By W. N. Hartley, F.E.S. 



X. Experimental Eesearches in Magnetism. By Professor J. A. Ewixg, B.Sc, 

 F.E.S.E. 



XL Observations on the Chromatology of Actinse. By C. A. MacMtjnn, M.A., 

 M.D. 



XII. On the Development and Morphology of JPhylloglossum Drummondli. By 

 Professor F. O. Bower. 



XIII. Results deduced from the Measures of Terrestrial Magnetic Force in the 



Horizontal Plane, at the Eoyal Observatory, Greenwich, f rom 1841 to 1876. 

 By Sir G. B. Airy, K.C.B./ F.E.S. 



XIV. On Eadiant Matter Spectroscopy. — Part II. Samarium. By William 



Crookes, F.E.S. 



XV. Eesearches on the Theory of Vortex Eings. Part II. By W. M. Hicks, 

 M.A., F.E.S. 



XVI. On the Clark Cell as a Standard of Electromotive Force. By Lord Eayleigh, 

 M.A., D.C.L., Sec. E.S. 



Index to Volume. 



Price £2 5.?. 



Extra volume (vol. 168) containing the Eeports 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. 



