October 2, 1896.] 



SCIENCE. 



473 



ORGANIC CHEMISTRY. 



William McPherson, Ohio State Univer- 

 sity : 'Hydrazones of Quinones.' This is 

 an extension to the naphthoquinone of 

 the previously published work on the ac- 

 tion of phenyl hydrazine on quinones. 

 Zincke's idea is confirmed, that in the ac- 

 tion of phenyl hydrazine on a naphtha 

 quinone there is a migration of a hydrogen 

 atom of phenyl hydrazine to the C=0 

 group. 



A. A. Noyes : ' Synthesis of Diethyl 

 Hexamethylene Ether and other Ethers 

 from Trimethylene Glycol,' By replacing 

 the hydrogen of one of the hydroxl groups 

 by sodium, then replacing this sodium by 

 the ethyl group, then replacing the remain- 

 ing hydroxyl group by chlorine, a substance 

 is obtained from which may be prepared the 

 diethyl hexamethylene ether. 



A. A. Noyes : ' Formation of Diacety- 

 lenyl (Butaiidine) from Copper Acetylene.' 

 The following transformations were effected: 

 €u-C=C-Cu+2CuCl,=Cu-C=C-C = C 

 — Cu. This was transformed into H— C = 

 •0— C=C— H (Butaiidine). 



This hydrocarbon takes up directly six 

 atoms of bromine. 



W. A. Noyes, Rose Polytechnic Insti- 

 tute : 'Camphoric Acid.' The author 

 shows that one of the carboxyl groups of 

 camphoric acid is primary, the other is ter- 

 tiary. He further shows that camphoric 

 acid is a derivative of succinic and not of 

 glutaric acid. From a study of the consti- 

 tution of campholitic acid he hopes to ob- 

 tain accurate evidence upon the constitu- 

 tion of camphoric acid. 



P. Fireman, Washington, D. C: ' Intro- 

 duction of Alkyl Iodides into Phosphines 

 by means of Ethers,' This was accom- 

 plished by heating phosphonium iodide 

 "with ethers in sealed tubes. Reaction takes 

 place more readily than with alcohol. 



S. H. Bear and A. B. Prescott, Univer- 

 sity of Michigaiu: ' Dipyridine Methylene 



Iodide and the Non-formation of Corre- 

 sponding Donopyridine Products.' This is 

 a continuation of work previously published 

 on the periodides of the nitrogen basis. 



C. Loring Jackson and W. E. Lamar, 

 Harvard University: ' On the Behavior of 

 Trichlordinotrobenzol with Various Rea- 

 gents,' ' On the action of Nitric Acid on 

 Potassic Cobalticyanide,' ' On the action of 

 Sodic Ethylate on Dinitranissic Acid.' In 

 the absence of the authors, Dr. Howe per- 

 sented a brief abstract of these three pa- 

 pers. 



DIDACTIC CHEMISTRY. 



F. p. Yenable, University of North Caro- 

 lina : '■ The use of the Periodic Law in 

 Teaching General Chemistry.' The author 

 advocated adherence, as far as possible, to 

 the periodic law in teaching general chem- 

 istry. 



W. P. Mason, Rensselaer Polytechnic In- 

 stitute : ' Chemistry at the Rensselaer Poly- 

 technic Institute,' 



A. A. Noyes : '■ Laboratory Instruction 

 in Organic Chemistry.' The author called 

 attention to the need of greater ability on 

 the part of students to identify the more 

 common organic compounds, or, at least, the 

 classes of compounds. He furnishes stu- 

 dents with group reactions of common or- 

 ganic compounds, then with methods of 

 separation. 



A. A. Noyes : ' The Teaching of Phys- 

 ical Chemistry.' The author asked that 

 courses in theoretical chemistry include 

 more of the recently developed views and 

 that such a course be accompanied by a 

 laboratory course. 



Ellen H. Richards, Massachusetts Insti- 

 stitute of Technology : ' Instruction in Sani- 

 tary Chemistry at the Massachusetts Insti- 

 tute of Technology.' 



T. H. Norton, University of Cincinnati: 

 'Points in Teaching Technical Chemistry.' 

 The author pointed out the necessity of vis- 

 iting several commercial plants with the 



