The Period from i88i to iN</> 31 



Value of Histological Investigation, illustrated by a Consideration of the 



Structure of a Respiratory Membrane in the Pharynx of Soft-Shelled 



Turtles. " 



Anthropology. William II. Dall : "The Native Tribes of Alaska." 

 Economic Science and Statistics. Edward Atkinson: 'The Application 



of Science to the Production and Consumption of Food." 



The Buffalo Meeting, August, 1886. (Vol. 35) 



Mathematics and Astronomy. J. Willard Gibbs : "Multiple Algebra." 



Physics. C. F. Brackett : "The Flectromotive Force of the Voltaic Cell." 



Chemistry. Harvey \Y. Wiley: "The Economic Aspects of Agricultural 

 Chemistry." 



Mechanical Science and Engineering. O. Chanute : "Scientific Inven- 

 tion." 



Geology and Geography. T. C. Chamberlin : "An Inventory of our 

 Glacial Drift." 



Biology. H. P. Powditch: "What Is Xerve-F'orce?" 



Anthropology. Horatio Hale: "The Origin of Panguages, and the 

 Antiquity of Speaking Man." 



Fconomic Science and Statistics. Joseph Cummings : "Capitalists and 

 Laborers." 



The \ r ew York Meeting, August, 1887. (Vol. 36) 



Physics. W. A. Anthony (value of applications of science). 



Chemistry. A. B. Prescott : "The Chemistry of Nitrogen as Disclosed 

 in the Constitution of the Alkaloids." 



Mechanical Science and Engineering. E. B. Coxe (engineers). 



Geology and Geography. G. K. Gilbert : "The Work of the International 

 Congress of Geologists" ( at Berlin in 1885). 



Biology. William G. Farlovv : "Vegetable Parasites and Evolution." 



Anthropology. Daniel G. Brinton : "A Review of the Data for the Study 

 of the Prehistoric Chronology of America." 



Economic Science and Statistics. Henry E. Alvord: "Economy in the 

 Management of the Soil." 



The Cleveland Meeting, August, 1888. {Vol. 37) 



Mathematics and Astronomy. Orniorid Stone: "Motions of the Solar 



System." 



Physics. Albert A. Michelson : "A Plea for Light Waves." 



Chemistry. Charles E. Munroe : "Some Phases in the Progress of 



Chemistry." 



