XXVI 



Dr.I. Janssen: Sur les Usages du Revolver Photographique en 

 Astronomie et eii Biologie. 



Dr. J. Janssen: Photographies du Passage de Vénus à Kobè. 



Dr. J. Janssen: Sur le Mirage en Mer. 



Sir William Thomson: On a New Case of Instability of Steady 

 Motion. 



W. H. W al e un: On Mj Sabines Method of Measuring Small Inter- 

 vals of Time. 



M. Ladd: Exhibition of specimens of Fluorescent Liquids. 



SEZIONE B 



Scienza- diimica 



discorso del Presidente W. H. Perkin Esqre, F.R.S., F.C.S., 

 Segretario della Società Chimica. 



M. M. P. Muir, F. R. S. E.: On Essential Oil of Sage. 



A. R. Newlands: On Relatious among the Atomic Weights of the 

 Elements. 



C. H. W. Biggs: On a New Voltale Battery. 



J. J. Cole man: On a Gas Condensing Machine for the Liquefaction of 

 (Sases by Combined Gold and Pressure. 



W. Ramsay: On Picoline. 



J. E. Stoddart: Lead Desilverizing, by the Zinc Process. 



Dott. Corfield: Report of Sewage Committee. 



A. H. Alien: Report on Commercial Phosphates and Potash Salts. 



J. Banks: Sewage PurLfication and Utilization. 



J. J. Gole man: Experimental Researches ouj^the Chemical Treatment 

 •f Town Excreta. 



Prof. Gamgee: On the Physiological Action of Pyro-Meta-and Ortho- 

 phosporic Acids. 



F. H. T. Allan: On a Safe and Rapid Evaporating Pan. 



Prof. T h r p e : F. R. S. Report on Specific Volumes of Liquids. 



Dott. Atkinson: Report of Committee for the purpose of Gollecting 

 and Suggesting Subjects for Chemical Researches. 



Walter Weldon: On the Means of Suppressing Alkali Waste* 



Dott. Macivar, F. R. S. E.:Onthe Possible Genesis of the Che- 



