Selman robert (24 Ergebnisse)

Paperback. Zustand: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Hardcover. Zustand: Very Good. 1. It's a well-cared-for item that has seen limited use. The item may show minor signs of wear. All the text is legible, with all pages included. It may have slight markings and/or highlighting.

Hardcover. Zustand: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

Hardcover. Zustand: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Hardcover. Zustand: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

Broschiert. Zustand: Gut. 116 Seiten; Das hier angebotene Buch stammt aus einer teilaufgelösten Bibliothek und kann die entsprechenden Kennzeichnungen aufweisen (Rückenschild, Instituts-Stempel.); der Buchzustand ist ansonsten ordentlich und dem Alter entsprechend gut. In ENGLISCHER Sprache. Sprache: Englisch Gewicht in Gramm: 230. …

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Hardcover. Zustand: As New. Like new in like new dj. Review copy with date stamp on fep and slip laid in.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: New. In English.

Zustand: New. In English.

Zustand: New. In English.

Hardcover. Zustand: Very Good. No Jacket. Missing dust jacket; May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

Hardbound. Zustand: As New. New. Contents Foreword. 1. The soil and the plant. 2. The microbe and its activities. 3. The soil population and its distribution. 4. Role of microbes in the decomposition of organic substances in the soil. 5. Transformation of nitrogen by soil microbes. 6. Transformation of nitrogen by soil microbes (continued). 7. Transformation of mineral substances in soil through the direct or indirect action of microorganisms. 8. Interrelationships between higher plants and soil microorganisms. 9. Modification of the soil population. 10. Importance of microbes in soil fertility. Index. The soil is not a mass of dead debris resulting simply from the physical and chemical weathering of rocks and of plant and animal remains through atmosphere agencies but it is teeming with life. Every small particle of soil contains numerous types of living organisms belonging both to the plant and animal kingdoms yet so small that they cannot be recognized with the naked eye. These organism are therefore called microbes. These microbes comprise numerous types of bacteria fungi algae protozoa nematodes and other invertebrates which vary considerably in their structure size mode of living and relationship to soil processes. In the cycles of transformation of elements in nature the microbes play an important if not a leading role. Were it not for them the soil would soon become covered with a considerable mass of undecomposed plant and animal residues life would soon cease since the very limited supply of carbon and available nitrogen the most essential elements in the growth of living organisms would become exhausted. It should be recalled that carbon dioxide the source of carbon for the growth of plants which in their turn supply the food for animal is present in the atmosphere only in a concentration of 0.03 per cent. This is equivalent to 5.84 tons of carbon over each acre of land. A good yield of sugar cane will consume about 20 tons of carbon in a single growing season of course most of the surface of the earth supports less vegetation than this and diffusion tends to create a uniform distribution of gases. It has actually been calculated that the plant world consumes 64.8 millions of tons of carbon annually which amounts to 1/35 of the total carbon content of the atmosphere. The atmosphere supply of carbon dioxide is however constantly replenished from the decomposition products of the organic substances in the soil only as a result of this does plant growth not cease entirely through a deficiency of an available supply of carbon. In the absence of microbes the available nitrogen would also become very rapidly exhausted as can be appreciated from the fact that this nitrogen is never present in the soil in forms available to plant growth as ammonia or nitrate in amounts of more than a few pounds per acre. It is made available to plants only through the constant activity of the microbes. The microorganisms through their various activities thus enable organic life to continue uninterruptedly on our planet. They keep in constant circulation the elements which are most essential for plant and animal life. They break down the complex organic molecules built up by plants and animals into the simple mineralized constituents making the elements again available for the growth of cultivated and uncultivated plants which in their turn supply further food for animals. Just as man and other animals as well as higher plants find their habitat on the surface of the soil or immediately below it so do the microbes live largely within the upper few inches of the earth's crust where they carry out their important activities supplying a continuous stream of nutrients in an available form for the growth of higher plants. This surface pellicle of the earth is thus found to be the seat of numerous processes of incalculable importance in the life of man animals and plants enabling them to carry out their normal existence on our planet. Just as man and animals are determined in the.…

Hardcover. Zustand: Gut. 476 S. Ehem. Bibliotheksexemplar mit Signatur und Stempel. GUTER Zustand, ein paar Gebrauchsspuren. Ex-library with stamp and library-signature. GOOD condition, some traces of use. Sprache: Englisch Gewicht in Gramm: 550.

Zustand: good. Befriedigend/Good: Durchschnittlich erhaltenes Buch bzw. Schutzumschlag mit Gebrauchsspuren, aber vollständigen Seiten. / Describes the average WORN book or dust jacket that has all the pages present.

SC. Zustand: Gut. Obr., 315s., in gutem Zustand, [HSA14,3a] Deu 400g.

Tankobon Hardcover. Zustand: Brand New. Japanese language. 8.19x6.06x0.39 inches. In Stock.

Paperback. Zustand: Brand New. 321 pages. 9.25x6.25x1.00 inches. In Stock.

Zustand: Hervorragend. Zustand: Hervorragend | Sprache: Englisch | Produktart: Bücher | Life is a lot like holding an Ice Cream Cone in your hand. If you get distracted, the sweetness of life will melt away and drip on the ground, lost forever. Reading this book from cover-to-cover can help you to seize the moment and enjoy the present. With a little cultivation, it may even change your life forever. We all have been taught from the very beginning how others want us to think and constantly believe. This book offers the tools to rewire all your verbal conditioning, so you can finally control your thoughts and fully enjoy life's ongoing adventure.…

Zustand: Gut. Zustand: Gut | Seiten: 374 | Sprache: Englisch | Produktart: Bücher | Keine Beschreibung verfügbar.

Zustand: Sehr gut. Zustand: Sehr gut | Seiten: 320 | Produktart: Bücher | Keine Beschreibung verfügbar.

Hardcover. Zustand: gut. Die Entwicklung des sozialen Verstehens In deutscher Sprache. pages.

Zustand: Fine. Vancouver, BC: The Image Bank Post Card Show, circa [1970's]., [1970's]. Fine. - A collection of 32 original picture postcards, 3-1/2 inches high by 5-1/2 wide. The postcards are variously illustrated with photographs or artwork on the rectos and printed text on the versos. The cards are all unused and were evidently not part of the set issued in 1977. Minor flaws only, else near fine. "In Vancouver in 1971, to celebrate the 100th year since the first picture postcard, Image Bank commissioned seventy-six small-size postcards to tour in a show with the Fine Arts Gallery at the University of British Columbia and the National Gallery of Canada. Image Bank itself was a radical duo of Fluxus-influenced artists who called themselves 'Michael Morris aka Marcel Dot aka Marcel Idea (Miss General Idea 1972) - & Vincent Trasov aka Mr. Peanut.' Trasov and Morris formed Image Bank in 1969 as a system of postal correspondence between participating artists. The 1971 project involved both unknown and well-known names." - [quoted from The British Museum]. A boxed set of postcards was published for the show with 82 cards. In 1977, Image Bank published another set of postcards titled The Image Bank Post Card Show. Following are the names and pseudonyms of the post card artists included here: Bryce Thompson, John Clinch, Gary Lee Nova (3 different cards), Dallas Selman, Alan Lindenfeld, Sander Heynemans, John Silvermouse, Morris/Lewis, Henry Greenhow, Monte Cazzaza (2 different cards), Liz Banks, Don Battershall, Ant Farmers and Image Bankers in Babyland, Aleatory Novelties Ltd, Robert Fish, Christos Dikeakos, Jeff Berner, John Willenbecher, William Farley, May Wilson, Sally Peanut, Bill Vazan, General Idea and Ace Space Co. Some of the artists are not identified. The titles of their cards are "camp works", "APHRODITE" by Airpress 71, "Flakey 1954-New Era Social Club" and "The Mounties bust some hippo smokers".…