Febeuaey 28, leOS] 



SCIENCE 



327 



to differences in spatial configuration. The 

 possibility of applying a similar explana- 

 tion to compounds similarly constituted 

 containing the grouping • CO -0:0, and 

 also to some dibenzalacetone derivatives 

 • C : C • CO • C : C, is referred to. 



Phenylmalonic Nitrite: John C. Hesslee. 



The silver salt of phenylmalonic nitrile 

 is hydrolyzed almost immediately after its 

 preparation, giving dimolecular and tri- 

 molecular phenylmalonic nitrile, as well as 

 an oxidation product of unknown molec- 

 tilar weight. Phenylmalonic nitrile and 

 the two polymers give this oxidation 

 product when treated with chromic acid. 

 Th« sodium salt of phenylmalonic nitrile 

 gives the same substance when treated with 

 bromine. 



Dimolecular phenylmalonic nitrile gives 

 a sodium salt and a silver salt. The silver 

 salt reacts with alkyl iodides to give alkyl 

 dimolecular phenylmalonic nitriles. 



The Catalysis of Imido Esters hy Alkalies: 



Herman I. Schlesinger. 



The parallel behavior of ordinary acid 

 esters and acid esters when catalyzed by 

 acids, as brought out by Hezty and his 

 collaborators, is found also in their be- 

 havior towards alkalies. Imido esters were 

 found to be catalyzed with a velocity pro- 

 portional to the concentration of the 

 hydroxyl ion. 



The Action of Alkalies on the Carbohy- 

 drates: J. U. Nepf. Keported by title. 



Marrubiin: H. M. Gordin. Reported by 

 title. 



Imido-liydantoiiie : James B. Garner. Re- 

 ported by title. 



On the Salts of Tautomeric Compounds: 

 S. F. Agree, R. F. Brunel, J. M. John- 

 son, G. H. Shadinger and Sidney 

 NiRDLiNGEE. Reported by title. 



27(6 Hydrocarbons in the Lignites of the 

 Northwest: G. B. Feankpoeter. Re- 

 ported by title. 



Some Halides of Pinene: G. B. Feank- 

 FORTER and Walter Badger. Reported 

 by title. 



INDUSTRIALi CHEMISTRY SECTION 



W. H. Ellis, Chairman 

 The Use of Carbon Tetrachloride as an 



Extractive in Commercial Analyses of 



Cotton-seed Ileal: Chas. IT. Herty and 



P. B. Stem. 



Carbon tetrachloride has been found to 

 be an excellent extractive of cotton seed 

 oil from the meal. As a substitute for the 

 Soxhlet apparatus for extraction a simpler 

 method is recommended. The meal is 

 allowed to stand in contact with a definite 

 volume of the extractive in an Erlenmeyer 

 flask. One half of the extractive is then 

 filtered off, the percentage of oil being de- 

 termined in this filtrate from the weight of 

 the residual oil after evaporation of the 

 extractive. By extracting at 70° C. it is 

 possible to get a complete extraction in 3f 

 minutes. 



The Volatile Oils of Pinus Tceda and of 

 Pinus echinata: Chas. TI. Herty and W. 

 S. Dickson. 



The volatile oils distilled from specimens 

 of the oleo-resins of Pinus Tceda (loblolly 

 pine) and Pinus echinata (shortleaf pine) 

 collected near Chapel Hill, N. C, have been 

 studied. The results show these to be 

 practically identical with the volatile oils 

 of the more common long-leaf pine and • 

 Cuban pine. The chief constituent of each 

 is pinene. 



A New Oxidizing Medium and its Func- 

 tion in the Blood and Muscle Elements:'' 



J. E. SlEBEL. 



' This paper was placed in the industrial section, 

 under the title of " A- New Oxidizing Agent.'" The 



