Book Reviews

When considered as an installment in the unfolding of Friedmann\u27s views, based on his earlier writings, the conclusion to the book under review is to be cherished. When considered, on the other hand, solely in context of the contributed chapters of the same volume, the conclusion does not emerge as Friedmann at his most forceful or persuasive. To find the best of Friedmann, we need only sample his prolific contributions to the law reviews, whether on the United States involvement in the Vietnam conflict, the judgment of the International Court in the South West Africa cases, the risks to humanity arising from genetic engineering, or the relationship between law and mankind\u27s sense of justice

TB196: Temperature, Soil Moisture, and Streamflow at the Bear Brook Watershed in Maine (BBWM)

The Bear Brook Watershed in Maine is a whole-ecosystem chemical manipulation initiated in 1987 to study the effects of acid deposition on forests and surface waters. The focus of this research was to understand the biogeochemical response of watersheds with emphasis on chemistry and hydrology. In 2001 a program was initiated to provide more detailed measurements of temperature and moisture to examine critical linkages amongst chemical, biological, and physical processes that ultimately work together to define ecosystem function. The purpose of this publication is to provide data from the initial phase of soil temperature, air temperature, and soil moisture measurements at the site. In addition, the authors have incorporated aspects of relevant precipitation and streamflow characteristics available for the full project period.https://digitalcommons.library.umaine.edu/aes_techbulletin/1001/thumbnail.jp

Rapid Oscillations in Cataclysmic Variables. XV. HT Camelopardalis (= RX J0757.0+6306)

We present photometry and spectroscopy of HT Camelopardalis, a recently discovered X-ray-bright cataclysmic variable. The spectrum shows bright lines of H, He I, and He II, all moving with a period of 0.059712(1) d, which we interpret as the orbital period. The star's brightness varies with a strict period of 515.0592(2) s, and a mean full amplitude of 0.11 mag. These properties qualify it as a /bona fide/ DQ Herculis star (intermediate polar) -- in which the magnetism of the rapidly rotating white dwarf channels accretion flow to the surface. Normally at V=17.8, the star shows rare and very brief outbursts to V=12-13. We observed one in December 2001, and found that the 515 s pulse amplitude had increased by a factor of ~100 (in flux units). A transient orbital signal may also have appeared.Comment: PDF, 19 pages, 3 tables, 6 figures; accepted, in press, to appear June 2002, PASP; more info at http://cba.phys.columbia.edu