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Agaves of Continental North America
New in paperback Spring 2004, this is an indispensable guide to agaves. The uses of agaves are as many as the arts of man have found it convenient to devise. At least two races of man have invaded Agaveland during the last ten to fifteen thousand years, where, with the help of agaves, they contrived several successive civilizations. The region of greatest use development is Mesoamerica. Here the great genetic diversity in a genus rich in use potential came into the hands of several peoples who developed the main agricultural center of the Americas. Perhaps, as the Aztec legends suggest, it was the animals that first showed man the edibility of agave. Evolution in use ranges all the way from the coincidental and spurious, through tool and food-drink subsistence with mystical overlay, to the practical specialties of modem industry and art. The historic period of agave will be outlined here as briefly as that complicated development will allow.
Frontiers Of Space And Ground-Based Astronomy
ROSAT Observations G. HASINGER Max-Planck-Institut flir extraterrestrische Physik, D-85740 Garching, Germany Abstract. This review describes the most recent advances in the study of the extragalactic soft X-ray background and what we can learn about its constituents. The deepest pointed observations with the ROSAT PSPC are discussed. The logN-logS relation is presented, which reaches to the faintest X-ray fluxes and to the highest AGN surface densities ever achieved. The N(>S) relation shows a 2 density in excess of 400 deg- at the faintest fluxes and a flattening below the Einstein Deep Survey limit. About 60% of the extragalactic background has been resolved in the deepest field. Detailed ...
The Jepson Manual
"More information is packed into one volume that will be useful to a wider audience than any other manual of this kind yet published in the history of botany."--David L. Magney, The California Native Plant Society "A single work . . . simultaneously accessible to dedicated beginners and indispensable to professional botanists. . . . For the first time in one volume a user-friendly flora of the exceedingly diverse higher plants of California."--Mildred E. Mathias, editor of Flowering Plants in the Landscape "Allows amateurs and professionals alike to easily and accurately identify plant species. . . . A product that will contribute in a major way to the preservation of California's unique floral resource. Our gratitude and congratulations for a job well done."--Phyllis Faber, Editor, Fremontia "Sets new standards for excellence . . . and picks up beautifully on the contemporary idea that botanical work should be fully accessible to the general public as well as to scientists."--Peter H. Raven, Missouri Botanical Garden "Precise and accurate, a masterpiece of clarity and succinctness."--G. Ledyard Stebbins, University of California, Davis
A California Flora and Supplement
This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1959. This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived
