fXY = fYX. Problems of this type can be multiplied indefinitely, and a general theory of partial differentiation in the large to cover all such problems is desirable. We have started to construct such a theory. Among the various theorems which we have proved are three which we announce in this note as follows. THEOREM 1. Let f(x, y) be of class C' on an open point set H. Let the four second par...

The Fiji Platform developed as an island arc in the Tertiary. Extensional and transpressional tectonics have deformed the fill of extensive sedimentary basins within the Platform. These basins commonly contain over 3 km of stratified deposits. Five deep petroleum-exploration wells were drilled between 1980 and 1982, but all were dry. There remain reasonable prospects, however, because none of t...

* A fuller report of the effects of ergotamine on the several chromatophores in this species is in preparation for publication elsewhere. Butcher, E. O., Biol. Bull., 77, 258-267 (1939). Cunningham, J. T., and MacMunn, C. A., Phil. Trans. Roy. Soc. (London), B184, 765-612 (1893). Foster, K. W., Jour. Exp. Zool., 77, 169-213 (1937). Ginsburg, J., Zool. Jahrb., Abt. Anat., 51, 227-260 (1929). Kel...

The nature of the surface of Venus is one of the keys to answering fundamental questions about the origin and evolution of the terrestrial planets and is of critical significance to comparative planetology. The last 25 years of solar system exploration have provided unprecedented views of the Earth, Moon, Mars, and Mercury. These views have shown that the smaller terrestrial planetary bodies (t...

a Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, Guangdong 510301, China b Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, USA c Department of Geology and Geophysics, Yale University, New Haven, CT 06520, USA d Department of Oceanography, Texas A&M University, College Station, TX 77...