In like manner we may readily explain other activities of the lower animals, such as migration of birds, ascent of rivers by fish to deposit their spawn, and all other provisions for food getting and care of young by both vertebrates and invertebrates.

The origin of instincts from subconscious activities, and these from habits and conscious activities, is a generalization in harmony not only with the doctrine of evolution, but also with the latest teachings of biologic psychology, and it denies in a very pronounced way the prevalent discordant and inharmonious theories of the materialistic biologists and psychologists.

There has been considered here the pleasure attending the work of the naturalist and scientist; that his pleasure is of the earth, earthy, compared with that which comes to the scientist-philosopher when he makes broad surveys of the fields of truth to the farther limits of God's universe.

The pleasures of the naturalist arise from the possession of things that are wonderful or rare. It has its mainsprings in an inherited, subconscious self, and is therefore deeply egoistic. The scientist may take great delight in building his classifications and in being regarded as an authority in his special department of science work; but the naturalist and scientist like best to be alone. in their labors, for they demand personal credit for their collections and generalizations. On the other hand, the richer enjoyments of the philosopher arise from companionship in the search for truth, and from the contemplation of that which will bless all mankind in its fruitage.

In conclusion, it is desired to emphasize one or two things said in this address. As an Academy of Science for the state of Kansas, it is believed that it is a duty which this organization owes to the state to assist through its members more young people to become students of science, and to make our observations and experiments as naturalists, our conclusions and classifications as scientists and our broad generalizations as philosophers contribute more largely in the future than in the past to the industrial, social, intellectual and spiritual happiness of the people of our commonwealth. To this end it is hoped that the means suggested for the more. ready study of the minerals, plants and animals of our state will soon be provided by the members of this Academy, either as such or as members of the faculties of our higher institutions of learning.

II.

CHEMICAL PAPERS.

"THE REACTION OF ANIMAL CELLS TO CHEMICAL STIMULI."

By FRANK HARTMAN, Kansas City, Kan.

"THE CHEMICAL PROCESSES FOR THE DETECTION OF ORGANIC SUBSTANCES AND MEDICINAL CHEMICALS."

By L. E. SAYRE, University of Kansas, Lawrence.

"A CHEMICAL STUDY OF THE LIME AND SULFUR DIP.'

By ROSCOE H. SHAW, University of Nebraska, Lincoln, Neb.

"ON THE DURABILITY OF CEMENT PLASTER."

By E. H. S. BAILEY and W. G. STROMQUIST, University of Kansas, Lawrence.

(41)