November 30, 1900.] 



SCIENCE. 



XIV. ' Male Preponderance (Androrhopy) in Lepi- 

 dopterous Insects,' by A. S. Packard. 



XV. ' The Synthesis and Eeactions of Sodium 

 Acetate Ester, and their Relation to a New Interpre- 

 tation of Chemical Metathesis,' by A. Michael. 



XVI. 'On the Genesis of Matter,' by A. Michael. 



XVII. ' Demonstration of the Projection of One 

 Grating by Another,' by C Barus. 



XVIII. ' Exhibition of Certain Novel Apparatus ; 

 A Wave Machine ; An Expansion Lens ; A Recording 

 System of Two Degrees of Freedom ; A Tube Show- 

 ing Colored Cloudy Condensation, ' by C. Barus. 



XIX. ' On Stability of Vibration and on Vanish- 

 ing Resonance,' by C. Barus. 



XX. ' Hysteresis-like Phenomena in Torsional 

 Magnetostriction and their Relation to Viscosity, ' by 

 0. Barus. 



XXI. 'Progress in the Echelon Spectroscope,' by 

 A. A. Michelson. 



XXII. ' Report on the Meeting of the International 

 Association of Academies held at Paris, July 31, 

 1900,' by J. M. Crafts. 



NEW YORK SECTION OF THE AMERICAN 

 CHEMICAL SOCIETY. 



The regular meeting of the New York Sec- 

 tion of the American Chemical Society was 

 held October 5th at the Chemists' Club. 



The following papers were read: 'Dr. Meyer's 

 Tangent System of Sulphuric Acid Manufac- 

 ture,' by C. Glazer; ' Note on the Determina- 

 tion of Zinc in the Franklin, New Jersey, Ores 

 by the Ferrocyanide Method,' by Wm. H. 

 Bassett. 



The chair appointed C. Richardson, P. de P. 

 Eicketts and M. Loeb a committee on prizes. 



M. T. BOGERT, 

 Sec' y pro tern. 



At the meeting on November 9th, Dr. C. 

 A. Doremus presided and over fifty members 

 were present. ' A Brief Review of Antipyrine 

 and its more Important Derivatives,' was the 

 subject of a paper by D. C. Eccles. Refer- 

 ring to the matter of papers to be read before 

 the Section during the season, Dr. MoMurtrie 

 said that every chemist actively engaged in any 

 subject could bring topics before the Section, 

 which would be of great interest to others, and 

 of no less interest because of not being in 

 shape for publication in the journal. And, 

 further, he urged the members to realize that 



interesting meetings required that each should 

 furnish his share of the work. 



The chairman, Dr. Doremus, said he thought 

 the opportunity of bringing their work before 

 the Society was not appreciated by the younger 

 members, who had better seek the opportun- 

 ity in their own interest than wait for invi- 

 tation. 



Special announcement was made of the death 

 of Dr. E. R. Squibb, so long an enthusiastic 

 member and active co-worker in the Society. 

 Personal reminiscences were given by Dr. Rice 

 and by Messrs. Bogert, McMurtrie, Breneman, 

 Eccles and Doremus. 



It was moved and seconded that a committee 

 be appointed to draw up suitable resolutions 

 expressing the Society's appreciation of Dr. 

 Squibb' s character, of his services to chemical 

 science, and of the loss sustained by the Society 

 in his death. And, further, that the resolutions 

 should be engrossed in duplicate — a copy to be 

 sent to his family and one to be preserved by 

 the Society. 



DuRAND Woodman, 



Secretary. 



NEW YORK ACADEMY OF SCIENCES. 



SECTION OF ASTRONOMY, PHYSICS AND 



CHEMISTRY. 



A MEETING of the Section was held on No- 

 vember 5th, at 12 West 31st Street, New York. 



A paper was read by Dr. F. L. Tufts, of Co- 

 lumbia University, on ' The Flow of Air through 

 Granular Materials at Different Pressures.' 

 These experiments were made in connection 

 with others on the transmission of sound 

 through the same materials. Three different 

 materials were experimented on, composed of 

 lead shot of three sizes, the diameters of the 

 shot being respectively 4.37 mm., 2.79 mm., 

 and 1.22 mm. The shot was placed in a tube 

 and air was forced through at different pres- 

 sures, the rate of flow of air being measured by 

 a gas meter and the pressure differences by a 

 water manometer. It was found that for a 

 given size of shot and a given pressure gradient, 

 the rate of flow was independent of the length 

 of the column of shot through which the air 

 flowed. The rate of flow, however, in the 

 three cases experimented with, did not increase 



