OCTOBEB 7, 1910] 



SCIENCE 



485 



the author has found these solvents to possess a 

 high degree of fluidity. 



The Electrical Conductivity of Solutions in 

 Methylamine and Ethylamine: F. F. Fitz- 

 gerald. 



The author has measured the conductivity of a 

 number of salts in these solvents through a con- 

 siderable range of concentrations and at tempera- 

 tures ranging from + 15° to — 33°. The maxi- 

 mum and minimum of the molecular conductivity 

 curve, first noted by Franklin and Gibbs, have 

 been found to characterize all the solutions 

 studied. 



The Charges of Ions in Electrolysis: Fernando 

 Sanford. 



Since no case is Icnown where an electrolytic 

 ion gives off a positive charge to an electrode, we 

 have no way of measuring directly the positive 

 charge on such an ion. If the ions are assumed 

 to have very short free paths, they will move with 

 accelerated velocities. If this acceleration were 

 uniform, their relative ionic charges could be 

 computed from the equation force = mass X ac- 

 celeration, since in a given electric field the force 

 acting upon an ion is proportional to its charge. 

 The following table shows the relative charges 

 of three groups of ions calculated in this way: 



Titles of other papers of which no abstracts 

 liave been received follow: 

 Further Studies on the Action of Ammonia 



upon Ethyl-phospho-platino-chlaride: Chas. H. 



Herty and Hamden Hill. 

 The Temperatures of the Carborundum Furnaces: 



Wilder D. Bancroft. 



Salvaging Sulphated Storage Cells: Wilder D. 



Bancroft. 

 The Silver Coulometer : G. D. Buckner and G. A. 



Hulett. 

 Occlusions in Electrolytic Silver: J. S. Laird and 



G. A. Hulett. 

 An Exact Electrolytic Method for Determining 



some Metals: W. L. Perdue and G. A. Hulett. 

 Cadmium Sulphate and the Atomic Weight of 



Cadmium: W. L. Perdue and G. A. Hulett. 

 A Common Thermometric Error in Determining 



Boiling Points under Reduced Pressure: Alex- 

 ander Smith. 

 A Convenient Form of Vapor Density Apparatus : 



Alan W. C. Menzies. 

 The Systems, Lime-icater-sugar and Lime-toater- 



glycerine at 25° C. : F. K. Cameron and H. E. 



Patten. 

 Phosphates of Lime IV.: F. K. Cameron and J. 



M. Bell. 

 The Influence of Organic Liquids upon tlie Inter- 

 action of Hydrogen Sulphide and Sulphur 



Dioxide: David Klein. 

 Concerning the Molecular Weight of Sulphur 



Vapor: O. F. Stafford. 

 A Rotating Graphite Anode: J. W. Turrentine. 

 Behavior of Certain Hydrazine Salts in Liquid 



Ammonia: A. W. Browne and A. E. Houle- 



HAN. 



Electrolysis of Solutions of Potassium Amide and 

 of Ammonium Trinitride in Liquid Ammonia: 

 A. W. Browne and M. E. Holmes. 



Electrolytic Corrosion of Various Metallic Anodes 

 in a Solution of Ammonium Trinitride in 

 Liquid Ammonia : A. W. Browne, M. E. 

 Holmes and J. S. King, Jb. 



The Examination of Ethyl Ether: Charles 

 Baskerville and W. A. Hamor. (a) A Study 

 of the Tests for Odor, Residue, Acidity and 

 Sulphur Compounds in Ethyl Ether. (6) The 

 Tests for the Presence of Water and Alcohol in 

 Ethyl Ether. (c) On the Changes Occurring 

 in Stored Ether and on the Existence of Ethenol 

 in Ethyl Ether, (d) The Tests for the Pres- 

 ence of Peroxides and Acetaldehyde in Ethyl 

 Ether, (e) On some New Tests for the Detec- 

 tion of Peroxides in Ethyl Ether. (f) The 

 Examination of Ethyl Ether intended for An- 

 esthetic and Reagent Purposes ; the Degrees of 

 Purity of American Ethers, and Recommenda- 

 tions for the Standardization of Anesthetic 

 Ether. 



