318 



SCIENCE 



[N. S. Vol. XXX. No. 766 



The paper deals largely with the description and 

 chemistry of the Carter process of white-lead 

 manufacture. By this " quick process " is pro- 

 duced a white lead having the requisite properties 

 of a goQd paint. 



The following papers were reported by title: 



The Physical Chemistry of Certain Arrowheads: 

 W. R. Whitney. 



The Electrical Conductivity of Concentrated Solu- 

 tions: E. C. Feankun. 



Rapid Electro-analysis with Graphite Cathode 

 Dish: J. W. Tuebentine. 



Effects of Surfaces on Reactions : F. K. Camebon. 



Behavior of the Higher UydrortAtrides in Liquid 

 Ammonia: A. W. Beowne and T. W. B. Welsh. 



Yalence—What is itf C. H. Heett. 



The Effect of Salts on the Toxicity of Phenol 

 Solutions: W. Lash Millee. 



The Formation of Carbon Dioxide in Solutions of 

 Thorium Nitrate: E. B. Mooee. 



Observations on the Use of the Auxiliary Elec- 

 trode in Rapid Electrolytic Analysis: E. P. 

 ScHOCH, Ethel Sykes, D. J. Beown and A. G. 

 Koeniq. 



The Atomic Weight of Silver: T. W. Richaeds 

 and H. H. Willaed. 



Basic Magnesium Chlorides: W. O. Robinson and 

 W. H. Waggaman. 



The Relation between Fluidity ami Vapor-pres- 

 sure: E. C. Bingham. 



The Tensile Strength of the Zinc-aluminum 

 Alloys: V. J. Skillman. 



The Reduction of Nitrobenzene by Iron: R. C. 

 Snowdon. 



The Behavior of the Iron Anode in Various Eleo- 

 trolytes: E. P. Schoch and 0. P. Randolph. 



The Chemical Properties of the Radioactive Prod- 

 ucts of Thorium: H. N. McCoT. 



A New Apparatus for Regulating the Supply of 

 Heating Mediums for Scientifio and Similar 

 Apparatus: Geo. E. Edelen. 



The Size of Pores in Membranes and Osmotic 

 Effects: S. Laweence Biqelow. 



Lead Silicates: H. C. Coopee. 



The Melting Point and Volatility of Chromium: 

 W. C. Absem and Habold Rush. 



Electric Vacuum Furnace Installations in the Re- 

 search Laboratory of the General Eleotrio Com- 

 pany: W. C. Absem. 



The Salts of Dichlor-tungstio Acid: W. C. Absem. 



Oxalo-molybdio Acid and its Salts: W. C. Absem. 



Molecular Attraction: J. E. Mills. 



The Internal Heat of Vaporization: J. E. Mnxs. 



On the Kinetics of Certain Inorganic Reactions 

 in Heterogeneous Media: M. A. Rosanofp and 

 B. S. Meeiqold. 



division of obganic chemists 



R. S. Curtias, chairman 



Ralph H. McKee, secretary 



Condensations in the Mesoxalio Ester Series: R. 



S. CUETISS. 



Condensations with oxomalonie esters and some 

 alcohols, amines, acidamids and haloid acids 

 have been tried with a view of forming inter- 

 mediate addition products on the carbonyl group 

 of the ester, also of studying the relative effect 

 of groups of different degrees of positivity or 

 negativity upon the reactivity of the ammonia 

 radical with the carbonyl group of the ester, and 

 the stability of the resulting addition products. 

 Comparative studies of these reactions with 

 methyl and ethyl oxomalonate have been made. 

 Perfectly pure ethyl oxomalonate has been made 

 by distilling the hydrate over PjOt. 



Ethyl, methyl, benzyl and propyl alcohols react 

 with ethyl oxomalonate — with the characteristic 

 loss of color of the keto ester, and formation of 

 thick colorless syrups — ^which partially dissociate 

 on being heated into the original constituents, and 

 which are changed by water into alcohol and the 

 dihydroxyester. 



Ethylurethane forms a crystalline addition 

 product, 



/COOCA 

 ROOC— N— 0< 



I / ^COOCjH, 

 HOH 



which is transformed into a faintly colored oil 

 by P2O5. Urea reacts to give a colorless crystal- 

 line product also. 



Aniline (1 mol.) reacts with ethyl oxomalonate 

 to give ethyl dianilinomalonate. Attempts to get 

 the intermediate addition body failed. However, 

 p-toluidine gives a white crystalline addition com- 

 pound, 



/"- 



CeH. • cHj . N— c <; 



/COAH5 



^COOCjH/ 



which easily loses H-jO over sulphuric acid — yield- 

 ing an oil — 



yCOOR 

 CeHj . CH, . N=C< 



^COOR 

 This is in analogy with the action of aniline in 

 methyl oxomalonate, which gives a colorless crys- 

 tal body. 



