( 4 ) 



Newlands' and MendelejefFs Law of Atomic Weights. By S. Haughton. 



1889. pp. 207. 4to. 2S. 

 Nitroprussides of the Bases of Opium. By E. W. Davy. 1885. pp.18. 



4to. IS. 



Opium : Nitroprussides of the Bases of Opium. By E. W. Davy. 

 1885. pp. 18. 4to. IS. 



Purser (F.): Some AppHcations of Bessel's Functions to Physics. 



1906. pp. 42. 8vo. gd. 

 Ramsay (Sir W.) : The Surface Energy of Mixtures of certain Liquids. 



1902. pp. 8. 4to. IS. 



Ryan (H.) and G. Ebrill : Synthesis of Glycosides : some derivatives 

 ofArabinose. 1903. pp.8. 8vo. is. 6d. 



Ryan (H.), and G. Ebrill: Note on the Action of Emulsine on 



i8-Glycosides. 1906. pp. 3. 8vo. 6d. 

 Salt Solutions : Latent Heat of Evaporation of Steam from Saturated 



Salt Solutions. By F. T. Trouton. 1890. pp. 19. 4to. is. 



Selenium : Undescribed Compounds of Selenium. By C. A. Cy\MERON 



and E. W. Davy. 1881. pp.22. 4to. is. 

 Surface Energy of Mixtures of certain Liquids. By SiR W. RAMSAY. 



1902. pp. 8. 4to. IS. 



Surface-tension : Creeping of Liquids and Surface-tension of Mixtures. 

 By F. T. Trouton. 1902. pp. 5. 8vo. is. 



Tarleton (F. a.) : Chemical Equilibrium. 1880. pp. 12. 4to. is. 



Trouton (F. T.): Latent Heat of Evaporation of Steam from Saturated 

 Salt Solutions. 1890. pp. 19. 4to. is. 



Trouton (F. T.) : The Creeping of Liquids and the Surface-tension 

 of Mixtures. 1902. pp.5. 8vo. is. 



Sold by 



Hodges, Figgis, & Co., Ltd., 104, Grafton-street, Dublin ; and 

 Williams & Norgate, 14, Henrietta-street, Covent Garden, 

 London, W.C. 



