ASSOCIATION'S FOR ADVANCEMENT OF SCIENCE. (AMERICAN.) 



Salts,'' by S. II. Baer and Albert B. Prescott; '^On 

 the Behavior of Trichlordinitrobenzol with Various 

 Reagents," " On the Action of Nitric Acid on Po- 

 tassic Cobalticyanide," and " On the Action of Sodic 

 Ethylate on Dinitranissic Acid," by C. Loring Jack- 

 son and W. R. Laraar. Didactic Chemistry, Prof. 

 James L. Howe, leader. " Points in teaching 

 Technical Chemistry," by Thomas H. Norton ; "The 

 Aim of Qualitative Analysis,'' by George C. Cald- 

 well : " The Aim and Methods of the College Course 

 in Qualitative Analysis," by H. P. Talbott ; " The 

 Teaching of Qualitative Analysis," by Arthur L. 

 Green ; " The Use of the Periodic Law in teaching 

 General Chemistry," by Frank P. Venable ; " Chem- 

 istry at the Rensselaer Polytechnic Institute," by 

 William P. Mason : " Laboratory Instruction in 

 Organic Chemistry," by Paul C. Freer ; " Labora- 

 tory Instruction in Organic Chemistry " and " The 

 Teaching of Physical Chemistry," by Arthur A. 

 Noyes; "Instruction in Sanitary Chemistry at the 

 Massachusetts Institute of Technology," by Ellen 

 H. Richards. Analytical Chemistry, Prof. Edward 

 D. Campbell, leader. "Notes on Reinsch's Test 

 for Arsenic and Antimony," by James L. Howe ; 

 "The Limits of Accuracy in Analytical Work,'' by 

 Edward D. Campbell; "Some Points in the Use 

 of Depths o"f Color as a Measure of Chemical Con- 

 tents," by Ellen H. Richards; "A New Form of 

 Laboratory Condenser" and "A Method of Ma- 

 nipulation for the Colorimetric Determination of 

 Ammoniacal Nitrous and Nitric Nitrogen in Bac- 

 terial Culture," by Erwin E. Ewell. Technical 

 Chemistry, Dr. William McMurtrie, leader. " Some 

 Applications of Chemistry to Railroads," by Charles 

 B. Dudley ; " Recent Developments in the Purifica- 

 tion and Filtration of Water," by Albert R. Leeds: 



1, " Some Properties and Uses of Natural Gas " and 



2, " A New Method for the Determination of Sul- 

 phur in White Iron," by Francis C. Phillips ; " The 

 Action of Organic Acids upon the Mineral Constit- 

 uents of Soils, or Some Compounds of Iron with 

 Organic Acids," " Corrosion of Metals by Water," 

 and " The Meaning of the Term ' Oxygen con- 

 sumed ' in the Report of a Water Analysis," by 

 Ellen H. Richards; "On Recent Improvements in 

 the Manufacture of Sulphuric Acid," by Charles L. 

 Reese ; " The Chemical Problems of the Pottery 

 Industry," by Karl Langenbeck ; "Sugar Making 

 at the Present Day," by W. C. Stubbs ; " Some By- 

 products of the Sugar Industry," by H. H. Nichol- 

 son ; " Composition of American Petroleum," by 

 Charles F. Mabery ; " Use of Coal-Tar Colors in 

 Foods," by H. A. Weber; "Some Points in the 

 Composition of California Wines," by Eugene W. 

 Hilgard ; " The Alkaloids of Anhelonium Lewinii 

 (Mescal Buttons)." by Erwin E. Ewell. 'Sanitary 

 Chemistry, William P. Mason, leader. " Well 

 Water," by William P. Mason ; " Value and Use of 

 Formaldehyde as a Disinfectant," by E. A. de 

 Schweinitz ; " Should the Practice of Embalming 

 the Dead be restricted by Law ? " by L. W. An- 

 drews ; " Observations on the Sanitary Nature of 

 the Mississippi River Water at Different Seasons," 

 by E. G. Smith. Agricultural Chemistry, Dr. L. L. 

 Van Slyke, leader. " The Work of the Agricul- 

 tural Chemists of America," by L. L. Van Slyke ; 

 " Conditions affecting the Normal Viscosity of 

 Milk " and " On the Restoration of the Viscosity of 

 Pasteurized Milk and Cream," by S. M. Babcock 

 and H. L. Russell ; " A Method of measuring the 

 ripening of Cheese." by S. M. Babcock. Biological 

 Chemistry, Dr. E. A. de Schweinitz. leader. "The 

 Necessity of Animal Experimentation in the Study 

 of Bio-Chemistry." by E. A. de Schweinitz ; " Andro- 

 medotoxin, the Poisonous Constituent of the Erica- 

 ceae and its Relation to Some Food Products." by 

 V. K. Chestnut ; and " The Toxic Action of Dis- 



solved Salts and their Electrolytic Dissociation," 

 by Louis Kahlenberg and R. II. True. 



D. Mechanical Science and Engineering. The 

 presiding officer of this section was Frank O. Mar- 

 vin, who occupies the chair of engineering in the 

 University of Kansas. He delivered a vice-presi- 

 dential address on " The Artistic Element in En- 

 gineering." The argument of this paper is con- 

 tained in the following summary with which Prof. 

 Marvin brought his address to a close : "The writer 

 firmly believes that there is a latent aesthetic qual- 

 ity in American life that is now struggling to find 

 both means for its gratification and methods of ex- 

 pression. Before there can be knowledge of its 

 meaning and power, there must be many attempts 

 and many failures. The whole process is one of 

 education, and that largely in the school of experi- 

 ence. This applies to the industrial and construc- 

 tive arts as well as to the fine arts. The engineer 

 will share in the general movement, but this is not 

 enough. As a designer of so much that the world 

 needs for daily use, he must do more than keep up ; 

 he must keep in advance. He must not only have 

 a capacity to enjoy, but also the power to originate 

 and apply. To this end he must give preliminary 

 study and thought to the principles of aesthetic de- 

 sign, so gaining an intellectual knowledge of them. 

 American engineering schools are doing little or 

 nothing to help the young engineer to this. A 

 course of study in engineering aesthetics near the 

 close of college life would be a great help and 

 stimulus to a young graduate, at least opening his 

 eyes to the fact that there was such a thing. After 

 knowledge comes the application of principles as 

 tests to an engineer's own work and to that of other 

 men. And, finally, witli theoretical and practical 

 knowledge well in hand and a love of what is beau- 

 tiful, comes the impulse to work artistically. With 

 such engineers and an appreciative clientele Ameri- 

 can engineering would be artistic. To this end let 

 us work." 



The following-named papers were read and dis- 

 cussed before the section : " The Most Economical 

 Points of Cut-off for Steam." by Henry T. Eddy; 

 " On a Continuous Indicator for Engine Tests " and 

 " On the Yield Point of Steel," by Thomas Gray ; 

 " The Performance of Small Steam Pumps," by 

 Mortimer E. Cooley ; " National Endowment of 

 Engineering Research," by William S. A Id rich ; 

 " The Cycle of the Plunger Jig," by Robert H. Rich- 

 ards ; " Some Notes, Physical and Commercial, upon 

 the Delta of the Mississippi River (with lanterrr 

 illustrations), by Elmer L. Corthell ;' " New Water 

 Prony Brake for testing Steam Turbines without 

 Reduction Gearing," by James E. Denton ; " An 

 Apparatus for accurately measuring Pressures of 

 2,000 Pounds per Square Inch and over," "Appa- 

 ratus for exhibiting the Distribution of Moisture in 

 a Steam Main," " Apparatus for tracing a Curve 

 representing the Force required to overcome the 

 Inertia of the Reciprocating Parts of a Steam En- 

 gine," and " Values of Heat of Combustion of Vari- 

 ous Gases per Cubic Foot for use in calculating the 

 Heating Power from the Analysis of a Gas," by 

 David S. Jacobus ; " Seepage from Colorado Canals," 

 by Louis G. Carpenter ; " The Friction of the Wa- 

 ter in the Pipes of a Hot- Water Heating System," 

 by John H. Kinealy ; " Some Results of the United 

 States Timber Tests," by John B. Johnson : " A New 

 Testing Machine for Beams and Framed Structures 

 (Capacity 50 Tons)," by Malverd A. Howe : " Irriga- 

 tion for the Eastern 'United States," by Olin H. 

 Landreth; "Soaring Flight," by Octave Chanute; 

 " On the Conversion of an Ordinary Planer into an 

 Apparatus for Precise Graduations " and " On the 

 Molecular Stability of Metals," by William A. 

 Rogers ; " An Arrangement using Storage Batteries 



