108 The American Naturalist. [January, 
The carbohydrates of the sweet potato.—W. E. Stone. 
Oxidation by means of the fixed alkaline hydrates.—P. S. Baker. 
Action of chloroform on aluminum chloride.—P. S. Baker. 
Specific reactions for the penta-glucoses.—W. E. Stone. 
The ‘‘ Perkins Synthesis.’’—P. S. Baker. 
Atomic weight of oxygen.—W. A. Noyes. 
The height of the atmosphere.—W. J. Spillman. 
Magnetic permeability of nickel at low temperatures.—A. P. Car- 
The uses of infinity and zero in algebra.—Rufus L. Green. 
The potable water-supply of the City of New York.—A. E. Phillips. 
Before the section over which Vice-President Hay presided the 
following papers were presented : 
Explorations of the U. S. Fish Commission in Colorado and Utah. 
—David S. Jordan. 
Explorations of the U. S. Fish Commission Steamer Albatross in 
the Pacific Ocean.—Charles H. Gilbert. 
Explorations of the U. S. Fish Commission in Missouri.—Frank M. 
w and Louis Rettger. 
Preliminary notes on the fishes of the Sandwich Islands.—O. P. 
Jenkins. 
Some notes on Indiana reptiles and batrachians.—A. W. Butler. 
Some rare batrachians.—W. S. Blatchley. 
Fishes of Putnam county.—O. P. Jenkins. 
Some habits of the crayfish.—C. W. Hargitt. 
The occurrence of the badger in Indiana.—Amos W. Butler. 
Notes on some fishes from the west coast of Africa, collected by 
Carl Stecklemann.—O., P. Jenkins. 
On certain species of the genus Chorophilus.—O. P. Hay. 
Some Indiana mildews.—M. A, Brannon. 
Variations in plants from unripe seeds.—J. C. Arthur. 
In the afternoon the following papers were read in this section : 
The plants of Putnam county.—D. T. McDougal. 
The Compositze of Vigo county.—W. S. Blatchley. 
© Some structures in Epiphegus.—E. M. Fisher. 
Mycorhiza and Epiphegus.—John M. Coulter. 
Some remarkable floral variations.—C. W. Hargitt. 
Some stem characters in Compositee.—Harry D. Seato 
- The Academy then went into general session. The lovis sub- 
jects were presented : 
Distribution of Cornus.—John M. Coulter. 

