— 13 



Chemistry — Continued. 



Reed, C. J. The graphic representation of the relation between 



valence and atomic weight (with triple chart). 4:4 $2.00 



Richter, George. (The physical and chemical properties of gelatin). 



12:10 .25 



Sander, E. (Analysis of condensed milk). 4:4 2.00 



Schiel, J. (Bisulphuret of carbon). 1:1* 



(Observations on glycerine). 1:1* 



Seddon, J. A. (Specific gravity and determination of alloys). 4 : 4 

 Warren, W. H. (Production of perfumes). 10:11 .50 



Wheeler, H. C. and C. Luedeking. Iodine in blowpiping. Pis. 



XI-XIII. 4:4 2.00 



Wislizenus, A. (Ozone). 1:3 " 



Earthquakes. — See Meteorology. 



Education, sociology. 



Geddes, P. (Plan for increasing the educational value of exposi- 

 tions). 10:11 -50 



Soldan, F. L. (The advance made in education during the nine- 

 teenth century). 11:11 -25 



Wood, O. M. (Sociology of the negro). 8:12 " 



Woodward, CM. At what age do pupils withdraw from the public 

 schools? 7:8. 



(Formulae of Herbart). 7 : 20 -50 



Engineering, machinery, manufactures. 



Adams, W. (Telephone for deaf persons). 4:3 2.00 

 Eads, J. B. (River jetties). 3:2 " 

 Espenschied, C. (Flour milling). 10:11 - 50 

 Johnson, J. B. (Portland cement). 8:12 .25 

 Kinealy, J. H. (Volume of air passing a register). V : 20 50 

 Kinsley, C. Discussion of series dynamo-electric machines. 8 : 7 

 Nipher,F. E. (Electric lights). 3:4 2.00 

 (Electric lights). 4:1 " 



(Mechanical influence of design). 4:1 



(On applying muscular work). 3:4 



On the output of the non-condensing steam engine, as a func- 

 tion of speed and pressure. 5:3-4 4.00 

 Schmidt, A. Iron manufacture in Missouri. 3 : 3 '-.00 

 Scott, C. M. On the improvement of the western rivers (with 



plate). 4:1 

 Thurman, John S. Industrial uses of compressed air). 11:11 -25 



Woodward, C. M. The efficiency of gearing under friction. 8 : 6 



Entomology, — See Biology. 



Ethics. 



Sheldon, Walter L. A bird's-eye view of the literature of ethical science 

 since the time of Charles Darwin. 13:4 -75 



Ethnology. — See Archaeology. 



Folk-lore. — See Language. 



* Exhausted. 



