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...

In this paper, the effect of different surficial nanostructure designs on absorption efficiency thin film GaAs solar cells is investigated numerically. For this, six photonic nanostructures over a substrate have been applied and optical properties are observed including reflectance, transmittance, absorption. Two optimized structures which higher used fundamental PN junction cell enhancement al...

Indurated surficial veneers are a characteristic phenomenon on exposures of unjointed granite in the southeastern states. They are caused by deposition of iron oxides in the interstices between the partially disaggregated mineral grains of the "sap" rock at the surface of the exposure. Breaching of veneers produces such peculiar erosional forms as weather pits, cavernous boulders, and pedestal ...