vii 



Page 



Description of a new Specimen of Glyptodvn, recently acquired by 

 the Royal College of Surgeons of England. By Thomas Henry 

 Huxley, F.B.S., &c 316 



On the Kelation of Aqueous Vapour to Radiant Heat. By John 

 Tyndall, F.R.S., &c 326 



Distribution of the Surface of the Third Order into Species, in refer- 

 ence to the absence or presence of Singular Points, and the reality 

 of its Lines. By Dr. Schlaffle, Professor of Mathematics in the 

 University of Berne - 327 



Experimental Investigations on the Stratified Appearance in Elec- 

 trical Discharges. Effect obtained by varying the Resistance. By 

 John P. Gassiot, F.R.S *. 329 



Applications of the Theory of the Polyedra to the Enumeration and 

 Registration of Results. By the Rev. Thomas P. Kirkman, M.A., 

 F.R.S 1 341 



Contributions towards the History of the Monamines. No. VI. 

 Note on the Action of Iodide of Methyl on Ammonia. By A. W. 

 Hofmann, LLJX, F.R.S 380 



Contributions towards the History of the Monamines. No. VII. 

 Transformation of Aniline into Benzoic Acid. By A. W. Hof- 

 mann, LL.D., F.R.S 383 



A Development of the Theory of Cyclones. By Francis Galton, 

 F.R.S. 385 



On the Immunity enjoyed by the Stomach from being digested by 

 its own Secretion during Life. By Frederick W. Pavy, M.D., 

 F.R.S. 386 



Notes of Researches on the Poly- Ammonias. No. XXII. Secondary 

 Products formed in the Manufacture of Aniline. By A. W. Hof- 

 mann, LL.D., F.R.S . 389 



On the Form of Crystals of Peroxide of Benzoyl. By Professor 

 William Hallows Miller, M.A., For. Sec. R.S. 394 



On the Synthesis of Leucic Acid. By Dr. Edward Frankland, 

 F.R.S 396 



On the Artificial Production of Fibrin from Albumen. By Alfred 

 Hutchison Smee, jun 399 



Note on the Spectrum of Thallium. By Professor William Allen 

 Miller, M.D., LL.D., Treas. and V.P.R.S 407 



Researches on some of the Artificial Colouring Matters. No. I. On 

 the Composition of the Blue Derivatives of the Tertiary Mona- 

 mines derived from Cinchonine. By A. W. Hofmann, LL.D., 

 F.R.S 410 



On some new Compounds obtained by Nitrogen-substitution, and 

 new Alcohols denved therefrom. By Peter Griess 418 



On the Differential Equations of Dvnamics. A sequel to a Paper on 

 Simultaneous Differential Equations. By Professor George Boole. 

 F.R.S. . ! 420 



