THIRTY-THIRD ANNUAL MEETING. fi 
13. Soil exhaustion by continuous cropping of wheat, by J. T. 
Willard. 
14. The value of graphical methods in teaching thermodynamics, 
by W. K. Palmer. 
15. Some recent experiments with liquid ammonia as a solvent, by 
E. C. Franklin and C. A. Kraus. (Read by Mr. Franklin.) 
16. Americus limestone, by A. J. Smith. 
17. On the southern extension of the Marion and Wellington for- 
mations, by C. N. Gould. 
18. Additional notes on medicinal plants of Kansas—medicinal 
agents of the Asclepiadacex, by L. E. Sayre. 
19. The effect of oxygen on animal life, by J.T. Willard and A. T. 
Kinsley. (Read by Mr. Willard.) 
20. Dakota Cretaceous of Kansas and Nebraska, by C. N. Gould. 
(Read by title.) 
21. Some Diatomacez of Reno county, Kansas, by Geo. H. Curtis. 
(Read provisionally by title, the author having been detained at home 
by illness.) 
22. The Flint Hills, by J. R. Mead. 
23. The use of ball bearings for general machinery, by W. K. 
Palmer. 
24. A new Cretaceous turtle, by S. W. Williston. 
The committee on membership reported, recommending E. H. 
Sellards, Lawrence; D. F. McFarland, Lawrence; and C. H. Martin, 
Topeka. 
On motion, they were elected to active membership. 
On motion, adjourned until eight o’clock P. M. 
Fripay Eveninc, December 28. 
The Academy met in the senate chamber. 
Pres. A. 8S. Hitchcock gave the annual address, choosing as a sub- 
ject “A Brief Outline of Ecology.” 
Prof. E. Miller gave a lecture on “The Milky Way,” illustrated 
with many lantern slides. 
Prof. G. P. Grimsley delivered a lecture on “The Mines and Min- 
erals of Kansas,” illustrated with numerous lantern slides. 
On motion, the Academy adjourned, to meet at nine o’clock A. M., 
Saturday. 
SatTurRDAY Mornine, December 29. 
The Academy met in the senate chamber, and was called to order 
by President Hitchcock. 
The minutes of the sessions of Friday were read and approved. 
The committee on nominations presented the following report : 
For president, E. Miller, Lawrence. 
