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631.423.5 --- 631.41 --- 581.19 --- Plant and Crop Sciences. Botany -- Plant Composition --- Dissolved salts. --- Chemical and physicochemical soil properties. --- Chemical constituents of plants.

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Poisonous plants. --- Dangerous plants. --- 581.19 --- Chemical constituents of plants --- ETH Ethnobotany & Economic botany --- ethnobotany --- poisonous plants --- arrow poisons --- plant poisons --- psychoactive plants --- drug plants --- 581.19 Chemical constituents of plants --- Dangerous plants --- Poisonous plants --- Plants, Poisonous --- Toxic plants --- Plant defenses --- Botany --- Plants --- Plant poisoning --- Plants, toxic

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General biochemistry --- General ecology and biosociology --- Environmental chemistry --- Chimie de l'environnement --- 581.19 --- 581.524.1 --- 591.58 --- 577.19 --- Chemical constituents of plants --- Theoretical and general questions. Mutual influences of living organisms --- Communication and expression by sound or ultrasonic vibrations, mime or other signals, smell, touch or chemical sense (chemoreception) --- Pheromones and phytocins --- ECO Ecology --- chemical ecology --- ecology --- insects --- plants --- 591.58 Communication and expression by sound or ultrasonic vibrations, mime or other signals, smell, touch or chemical sense (chemoreception) --- 581.524.1 Theoretical and general questions. Mutual influences of living organisms --- 581.19 Chemical constituents of plants --- 577.19 Pheromones and phytocins --- Ecology. --- Pheromones --- Steroids --- Toxins

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ASTRONOMERS’ OBSERVING GUIDES provide up-to-date information for amateur astronomers who want to know all about what it is they are observing. This is the basis of the first part of the book. The second part details observing techniques for practical astronomers, working with a range of different instruments. Have you ever been on the beach at night, watching the sky overhead, and seen streaks of light against the background of stars? Though many people still refer to these as shooting stars, they are, of course, not stars. They are meteors—small chunks of rock and ice debris from disintegrating comets that are careening through our Solar System and sometimes enter Earth’s atmosphere. Most are so small that they burn up as they enter the atmosphere. These are called meteors. In a meteor shower, many meteors can be seen streaking across the sky in a short time. A few meteors make it through intact and descend to Earth as meteorites. Watching these beautiful streaks of light in the sky can be an exciting pastime, and it can result in some important science. Robert Lunsford explains what meteors are, where they come from, and what happens to them as they whiz through space and enter our atmosphere. He tells how to observe meteors and meteor showers, what equipment to use, what you should look for, where you should look, and much more. Armed with the information in this book and with very little effort and equipment, you can begin your regular search of the heavens right now and join the ranks of those who have made this rewarding pastime a lifetime hobby. Practical Astronomy ISBN 978-0-387-09460-1 springer.com.

Meteors --- Astronomy --- Popular works. --- Planetology. --- Observations, Astronomical. --- Space sciences. --- Astronomy. --- Popular Science. --- Popular Science in Astronomy. --- Extraterrestrial Physics, Space Sciences. --- Astronomy, Observations and Techniques. --- Physical sciences --- Space sciences --- Science and space --- Space research --- Cosmology --- Science --- Astronomical observations --- Observations, Astronomical --- Planetary sciences --- Planetology --- Observations. --- Astronomical meteors --- Falling stars --- Fireballs (Meteors) --- Shooting stars (Meteors) --- Stars, Falling --- Stars, Shooting --- Near-Earth objects --- Plant products. --- Phytochemistry. Phytobiochemistry --- 581.1 --- 581.19 --- 581.19 Chemical constituents of plants --- Chemical constituents of plants --- 581.1 Plant physiology --- Plant physiology --- Plant products --- Produits végétaux --- Astrophysics. --- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics). --- Astronomical physics --- Cosmic physics --- Physics --- Astronomy—Observations.

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Phytochemistry. Phytobiochemistry --- Plant ecology. Plant sociology --- Botanical chemistry --- Ecology --- Toxins --- Chimie végétale --- Ecologie --- Congresses --- Congrès --- 581.19 --- -Ecology --- -Toxins --- -581.57 --- Natural toxicants --- Toxicants, Natural --- Toxins and antitoxins --- Antigens --- Metabolites --- Poisons --- Antitoxins --- Detoxification (Health) --- Balance of nature --- Biology --- Bionomics --- Ecological processes --- Ecological science --- Ecological sciences --- Environment --- Environmental biology --- Oecology --- Environmental sciences --- Population biology --- Phytochemistry --- Plant biochemistry --- Plant chemistry --- Biochemistry --- Botany --- Phytochemicals --- Plant biochemical genetics --- Chemical constituents of plants --- Means of protection. Means of attraction. Adaptations for self-preservation --- Plant and Crop Sciences. Agricultural Entomology and Acarology --- Congresses. --- Agricultural Entomology --- Ecological Entomology --- Ecological Entomology. --- 581.57 Means of protection. Means of attraction. Adaptations for self-preservation --- 581.19 Chemical constituents of plants --- Chimie végétale --- Congrès --- 581.57