July 21, 1905.] 



SCIENCE. 



79 



For purposes of classification and nam- 

 ing it is proposed to divide cellulose ni- 

 trates (as the nitration products of cel- 

 lulose are correctly called) into two classes, 

 ether-alcoliol soluble, and ether-alcohol 

 insoluble. Each product in each of these 

 classes is then desig-nated according to its 

 nitrogen content expressed in percentage 

 of dry material. After a brief description 

 of cellulose nitrate manufacture, the 

 methods for examination were summarized 

 as follows: (1) Stability tests: potassium- 

 iodide-starch test, German 135° C. test, 

 ordnance department 115° C. test. (2) 

 Analysis: moisture, nitrogen, soluble 

 (ether-alcohol), insoluble (ether-alcohol), 

 soluble in acetone, cellulose, ash, alkalis. 

 (3) Physical examination: compression 

 test, microscopical tests. 



Camphoroxalic Acid Derivatives : J. Bishop 

 Tingle and William E. Hoffman, Jr. 

 The condensed formulge AgHC404C8Hi4, 

 CuC^O^CgHi^ and Fe(HC404C8H,j3 rep- 

 resent three, types of metallic salts pre- 

 pared. With amines representatives of 

 four types of compounds have been pre- 

 pared and their properties and constitution 

 studied; there is also a fifth class the con- 

 stitution of which is uncertain. The 

 amines from which the above-mentioned 

 compounds were prepared were : a-naph- 

 thylamine, /?-naphthylamine, p-toluidine, 

 m-toluidine, benzylamine, diethylamine, 

 dimethylamine, methylamine, o-phenyl- 

 enediamine, benzidine, nitrotoluidine, semi- 

 carbazine, benzamidine, phenylhydrazine. 

 Certain other amines gave negative or un- 

 satisfactory results. 



Eosocyanine: C. Loring Jackson and 



Latham Clarke. 



Rosocyanine has the same percentage 

 composition as curcumine. Its relation to 

 eurcumine was discussed. 



27(6 Formula of Curcumine: C. Loring 

 Jackson and Latham Clarke. 

 The older formula Ci4Hi404 is shown to 

 be in harmony with the analyses and is 

 supported by a determination of the molec- 

 ular weight. 



The Reduction of 5-Nitro-4-ketodihydro- 

 quinasolines to the Corresponding 

 Amino quinazolines, and the Preparation 

 of Certain Derivatives of the Latter: 

 M. T, BoGERT and V. J. Chambers. 



The Synthesis of 5-Nitro-4-ketodihydro- 

 quinazolines from 6-Nitroacetanthranil 

 and Primary Amines: M. T. Bogert and 

 H. A. Seil. 



On Isomeric and N Ethers Derived from 

 2-Alkyl-4-oxy-5-nitroquinazolines and 2- 

 Alkyl- 4 -keto-5-nitrodihydroquinazolines : 

 M. T. Bogert and H. A. Seil. 



Some Acyl Derivatives of Homoanthranilic 

 Nitrite and the 7-Methyl-4-ketodihydro- 

 quinazolines Prepared Therefrom: M. T. 

 Bogert and A. Hoffman. 



The Condensation of Succinylosuccinic 

 Acid Diethyl Ester with Guanidine: A 

 Derivative of 1, 3, 6, 8-Naphtotetrazine, 

 a New Heterocycle: M. T. Bogert and 

 A. W. Dox. 



The Methoxyl Group in Certain Lignocel- 

 luloses: Alvin S. Wheeler. 



Influence of Dilution and of the Presence 

 of Lactose and Maltose upon the Osazone 

 Test for Glucose: H. C. Sherman and 

 R. H. Williams. 



Some Further Notes on the Possible Exist- 

 ence of Esters of Ftdminic Acid: H. C. 

 Biddle. 



Some Condensation Products of 1-Phenyl- 

 naphthalene-2,3-dicarhoxylic Anhydride: 

 Norman A. Dubois. 



On Monobromalkylketodihydroquinazo- 

 lines: W. F. Hand and M. T. Bogert. 



