POST FIRE REGROWTH OF ADENOSTOMA FASCICULATUM H. AND A. AND CEANOTHUS CRASSIFOLIUS TORR. IN RELATION TO ECOLOGY AND ORIGINS

GEORGE F. HOWE

Regrowth of two important chaparral shrubs (Adenostoma fasciculatum H. & A. -chamise, and Ceanothus crassifolius- buck brush) has been studied after five different fires in the vicinity of Newhall, California. It is clear that chamise seedlings are regularly important in regeneration of chamise populations after fire, even though preexisting chamise plants can resprout from their crowns. It is found, on the other hand, that populations of buck brush frequently do not regenerate after fire despite the great buck brush potential for seedling growth. This problem is briefly examined although no immediate explanation is apparent.

CREATION AND CREATIVITY - REMARKS ON THEIR PHYSICAL SIGNIFICANCE

JERZY Z. HUBERT

In this article, the author discusses such questions as: "What is meant by Creation?"; "What is meant by calling a person creative?"; and "How can creation be reconciled with the laws of conservation as they are considered in physics?" It is concluded that on the human level, creation consists of giving a form to matter which already exists. Thus, what is called creation on the human level does not conflict with the laws of conservation. With respect to a level higher, human beings can see that both the matter and the form for it could be created; and this is the kind of creation described in Genesis.

ANOTHER THEORY OF GRAVITATION:

AN ALTERNATIVE TO EINSTEIN'S GENERAL THEORY OF RELATIVITY

THOMAS G. BARNES AND RAYMOND J. UPHAM, JR.

The second of Einstein's two relativity theories, his general theory of relativity, is a theory of Gravitation. Its wide acceptance and his original fame may be attributed largely to the presumed verification of predictions that he made relative to three effects in astronomy. Now, however, it turns out that all three of these effects should have been expected from other considerations; they can be shown to follow from more conventional physical analyses without the need for his theory and its rather drastic "nonphysical" concepts. A theory of gravitation is developed in this paper that follows the same analytical form as that which has proved to be so successful in electric theory, namely the form of Maxwell's four field equations in his electromagnetic theory of light. This theory yields all of the applications known from Newton's theory of gravitation plus the "expected" dynamical effects of gravitational waves and radiation, minute effects that Newton failed to provide for. If this new theory of gravitation is accepted, it will greatly alter the foundations of modern cosmology. Although the predicted gravitational radiation effects have the same order of magnitude as Einstein's, there is enough difference in value that if these effects are ever measured with sufficient accuracy this theory may be the "winner" This theory has not yet been completely explored; but it appears to be a satisfying alternative to Einstein's general theory of relativity; with much greater physical plausibility.

DARWIN DENIED: THE SUPERSTITION OF STOCHASTIC SUCCESSION

ROBERT W. BASS

The scene is a meeting of experts to discuss the reality, or otherwise, of UFO's. The narrator is a physical anthropologist whose avocation is exobiology. Pictures, allegedly to be of the crew of a UFO, have just been shown. As the curtain rises, the narrator is commenting on the pictures.

THE USE AND ABUSE OF ASTRONOMY IN DATING

DONOVAN A. COURVILLE

DEPOSITION OF CALCIUM CARBONATE IN A LABORATORY SETTING

E. L. WILLIAMS, R. J. HERDKLOTZ, G. L. MULFINGER, R. D. JONSONBAUGH, AND D. L. PIERCE