.TlLY 24. 1903.] 



SCIENCE. 



99 



Tin Vapor Tension of Ammoniacal Copper 



Sulphate Solutions: James Locke. (By 



title.) 

 The Constitution of Sulphur Chloride: W. 



R. Smith and I. F. B. Wade. 



Two facts which speak for the asym- 

 metrical formula 



/CI 

 s = s< 



are the synthesis from thiouyl chloride and 

 the formation, when sulphur chloride re- 

 acts with such siibstances as zinc ethyl, of 

 compounds containing only one atom of 

 sulphur. 



Mercurous Sulphide: Charles Basker- 

 \aLLE. (By title.) 



Attempts to prepare Certain Rare Earth 

 Alums, and on Some Netv Double Sul- 

 phates: Charles Basker\tlle and 

 Hazel Holland. (By title.) 



On the Purification of Neodidymium: 

 Charles Baskerville and Reston Ste- 

 venson. (By title.) 



PrcEseodidymi^im Tetroxide: Charles 

 Baskerville and J. B. Thorpe. (By 

 title.) 



New Peroxides of Certain Rare Earths: 



Charles Baskervh^le and T. B. Faust. 



(By title.) 

 Mordanting with the Rare Earths: Charles 



Baskerville and T. B. Faust. (By 



title.) 



Som,e Neiv Organic Salts of Zirconium: 

 Charles Baskerville and 11. H. Ben- 

 nett. (By title.) 



The Proportions of Silver Nitrate and of 

 Silver Sulphate Formed bij the Action 

 of Nitric Acid on Silver Sulphide: Hip- 

 polyte Gruener. 



When a large amount of strong acid is 

 used, the product is almost entirely sul- 

 phate : the maximum amount of nitrate was 

 obtained by long boiling with 4 per cent. 



acid ; even here 10 per cent, of tlie product 

 is sulphate. 



The Action of Dissolved Oxygen on Cup- 

 rous Chloride: W. M. Blanciiard and 

 Bert D. Ingles. 



As previously shown by Vogel, water 

 containing air acts on cuprous chloride 

 according to the equation 



2Ca,Cl2 + O = Cafi -|- SCuCI.j, 

 but not more than 97 per cent, of the 

 amount present can be so converted. If, 

 however, gaseous oxygen is passed into 

 water containing cuprous chloride in sus- 

 pension, a bluish basic chloride results. 

 The Action of Hydrogen Peroxide on Cup- 

 rous Chloride: W. M. Blanchard. 

 A chocolate-colored basic chloride is first 

 formed which soon changes to a greenish 

 blue basic chloride supposed to be 



CaO.CnCl.,.4H,0. 

 Oxygen is simultaneously evolved. 

 On the Changeable Hydrolytic Equilibrium 

 of Dissolved Chromic Sulphate: T. W. 

 Richard and F. Bonnet, Jr. 

 The authors confirm the conclusion of 

 Whitney and Recoura that a green basic 

 substance exists in the green solution, but 

 they show further that the .substance is 

 much more basic than was previously sup- 

 posed. The investigation will be continued. 



On the Deposition of Sodium from a Solu- 

 tion of Sodium Iodide in Acetone: II. 

 E. Patten and W. R. Mott. (By title.) 



On the Deposition of Zinc Chloride Dis- 

 solved in Acetone: H. E. Patten. (By 

 title.) 



Derivations of Trichlorethylidenc-dinitro- 

 phenamine: Alvin S. Wheeler and M. 

 R. Glenn. (By title.) 



Some Salts of Triphemjhnethyl: if. Gom- 

 BERG and L. H. Cone. (By title.) 



Triphenylmcthylacetate: M. Gomberg and 

 J. T. Davis. (By title.) 



