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The Birds Colouring Book - Hardback Gift Edition: Peter Gray The Birds Colouring Book - Hardback Gift Edition
Peter Gray; Illustrated by John james Audubon, John T. Bowen, John Gerrard Keulemans
R244 Discovery Miles 2 440 Ships in 12 - 17 working days
Fundamentals of Soils (Hardcover): John Gerrard Fundamentals of Soils (Hardcover)
John Gerrard
R5,499 Discovery Miles 54 990 Ships in 12 - 17 working days


Fundamentals of Soil provides a comprehensive and engaging introduction to soils and the workings of soil systems. This text is the only one of its kind to provide an attractive, lively and accessible introduction to this topic. Featuring learning tools within each chapter, such as summaries, essay questions and guides for further reading, the text is also highly illustrated with useful tables, boxes and figures. Covering all key areas of study at an introductory level, subjects covered include:
· Soil properties
· Soil processes
· Controls on soil formation
· Soil classification
· World soils
· Soil patterns
· Soil degradation.

The Birds Coloring Book - Hardback Gift Edition (Hardcover): Peter Gray The Birds Coloring Book - Hardback Gift Edition (Hardcover)
Peter Gray; Illustrated by John james Audubon, John T. Bowen, John Gerrard Keulemans
R361 R307 Discovery Miles 3 070 Save R54 (15%) Ships in 10 - 15 working days
Dear Earth - Art and Hope in a Time of Crisis: Maja & Reuben Fowkes, Rebecca Solnit, Rachel Thomas, Greta Thunberg Dear Earth - Art and Hope in a Time of Crisis
Maja & Reuben Fowkes, Rebecca Solnit, Rachel Thomas, Greta Thunberg; Artworks by Andrea Bowers, …
R703 Discovery Miles 7 030 Ships in 12 - 17 working days
Rocks and Landforms (Paperback, Softcover reprint of the original 1st ed. 1988): John Gerrard Rocks and Landforms (Paperback, Softcover reprint of the original 1st ed. 1988)
John Gerrard
R1,593 Discovery Miles 15 930 Ships in 10 - 15 working days

Geomorphology can be defined simply as the study of landforms. Landforms are the result of the interaction between what Ritter (1978) has called the driving and resisting forces. The driving forces or processes are the methods by which energy is exerted on earth materials and include both surface, geomorphological or exogenous processes and subsurface, geological or endogenous processes. The resisting forces are the surface materials with their inherent resistances determined by a complex combination of rock properties. Stated in these simple terms it would be expected that both sides of the equation be given equal weight in syntheses of landform evolution. However, this has not been the case. Until about the 1950s, geomorphology was mainly descriptive and concerned with producing time-dependent models of landscape evolution. Although the form of the land was the main focus, there was little detailed mention of process and scant attention to the properties of surface materials. There were, of course, exceptions. In the late 19th century G.K. Gilbert was stressing the equilibrium between landforms and processes. Many hydrologists were examining the detailed workings of river 'systems and drainage basins, culminating in the classic paper of Horton (1945).

Fundamentals of Soils (Paperback, New): John Gerrard Fundamentals of Soils (Paperback, New)
John Gerrard
R1,532 Discovery Miles 15 320 Ships in 12 - 17 working days


Fundamentals of Soils provides a comprehensive and engaging introduction to soils and the workings of soil systems. This text is the only one of its kind to provide an attractive, lively and accessible introduction to this topic. Featuring learning tools within each chapter, such as summaries, essay questions and guides for further reading, the text is also highly illustrated with useful tables, boxes and figures. Covering all key areas of study at an introductory level, subjects covered include:
· Soil properties
· Soil processes
· Controls on soil formation
· Soil classification
· World soils
· Soil patterns
· Soil degradation.

A Natural History of Cage Birds: John Gerrard Keulemans A Natural History of Cage Birds
John Gerrard Keulemans
R1,184 Discovery Miles 11 840 Ships in 10 - 15 working days
Dogs, Jackals, Wolves, and Foxes - A Monograph of the Canidæ (Hardcover): St. George Jackson Mivart, John Gerrard Keulemans Dogs, Jackals, Wolves, and Foxes - A Monograph of the Canidæ (Hardcover)
St. George Jackson Mivart, John Gerrard Keulemans
R965 Discovery Miles 9 650 Ships in 10 - 15 working days
A Natural History of Cage Birds: John Gerrard Keulemans A Natural History of Cage Birds
John Gerrard Keulemans
R919 Discovery Miles 9 190 Ships in 10 - 15 working days
A Natural History of Cage Birds: John Gerrard Keulemans A Natural History of Cage Birds
John Gerrard Keulemans
R1,656 Discovery Miles 16 560 Ships in 10 - 15 working days
Dogs, Jackals, Wolves, and Foxes - A Monograph of the Canidæ (Paperback): St. George Jackson Mivart, John Gerrard Keulemans Dogs, Jackals, Wolves, and Foxes - A Monograph of the Canidæ (Paperback)
St. George Jackson Mivart, John Gerrard Keulemans
R675 Discovery Miles 6 750 Ships in 10 - 15 working days
A Natural History of Cage Birds: John Gerrard Keulemans A Natural History of Cage Birds
John Gerrard Keulemans
R602 Discovery Miles 6 020 Ships in 10 - 15 working days
The Avifauna of Laysan and the Neighbouring Islands - With a Complete History to Date of the Birds of the Hawaiian Possessions;... The Avifauna of Laysan and the Neighbouring Islands - With a Complete History to Date of the Birds of the Hawaiian Possessions; text (Hardcover)
Lionel Walter Rothschild Rothschild; Henry Palmer; Created by J G (John Gerrard) 1842 Keulemans
R1,119 Discovery Miles 11 190 Ships in 10 - 15 working days
The Birds of Australia; v.7 (1918-1919) (Paperback): Gregory M (Gregory Macalist Mathews, J G (John Gerrard) 1842 Keulemans,... The Birds of Australia; v.7 (1918-1919) (Paperback)
Gregory M (Gregory Macalist Mathews, J G (John Gerrard) 1842 Keulemans, Henrik 1858-1940 Grönvold
R950 Discovery Miles 9 500 Ships in 10 - 15 working days
The Birds of Australia; v.5 (1915-1916) (Paperback): Gregory M (Gregory Macalist Mathews, J G (John Gerrard) 1842 Keulemans,... The Birds of Australia; v.5 (1915-1916) (Paperback)
Gregory M (Gregory Macalist Mathews, J G (John Gerrard) 1842 Keulemans, Henrik 1858-1940 Grönvold
R864 Discovery Miles 8 640 Ships in 10 - 15 working days
The Avifauna of Laysan and the Neighbouring Islands - With a Complete History to Date of the Birds of the Hawaiian Possessions;... The Avifauna of Laysan and the Neighbouring Islands - With a Complete History to Date of the Birds of the Hawaiian Possessions; text (Paperback)
Lionel Walter Rothschild Rothschild; Henry Palmer; Created by J G (John Gerrard) 1842 Keulemans
R780 Discovery Miles 7 800 Ships in 10 - 15 working days
The Birds of Australia; v.6 (1916-1917) (Paperback): Gregory M (Gregory Macalist Mathews, J G (John Gerrard) 1842 Keulemans,... The Birds of Australia; v.6 (1916-1917) (Paperback)
Gregory M (Gregory Macalist Mathews, J G (John Gerrard) 1842 Keulemans, Henrik 1858-1940 Grönvold
R960 Discovery Miles 9 600 Ships in 10 - 15 working days
A Chapter on Birds - Rare British Birds (Paperback): Richard Bowdler 1847-1909 Sharpe A Chapter on Birds - Rare British Birds (Paperback)
Richard Bowdler 1847-1909 Sharpe; Created by J G (John Gerrard) 1842 Keulemans
R541 Discovery Miles 5 410 Ships in 10 - 15 working days
The Birds of Australia; v.8 (1919-1920);suppl.1 (1920) (Paperback): Gregory M (Gregory Macalist Mathews, J G (John Gerrard)... The Birds of Australia; v.8 (1919-1920);suppl.1 (1920) (Paperback)
Gregory M (Gregory Macalist Mathews, J G (John Gerrard) 1842 Keulemans, Henrik 1858-1940 Grönvold
R838 Discovery Miles 8 380 Ships in 10 - 15 working days
A Chapter on Birds - Rare British Birds (Hardcover): Richard Bowdler 1847-1909 Sharpe A Chapter on Birds - Rare British Birds (Hardcover)
Richard Bowdler 1847-1909 Sharpe; Created by J G (John Gerrard) 1842 Keulemans
R888 Discovery Miles 8 880 Ships in 10 - 15 working days
Supplement to the 'Birds of New Zealand'; v.1 (1905) (Hardcover): Walter Lawry Buller, J G (John Gerrard) 1842... Supplement to the 'Birds of New Zealand'; v.1 (1905) (Hardcover)
Walter Lawry Buller, J G (John Gerrard) 1842 Keulemans
R964 Discovery Miles 9 640 Ships in 10 - 15 working days
Supplement to the 'Birds of New Zealand'; v.1 (1905) (Paperback): Walter Lawry Buller, J G (John Gerrard) 1842... Supplement to the 'Birds of New Zealand'; v.1 (1905) (Paperback)
Walter Lawry Buller, J G (John Gerrard) 1842 Keulemans
R673 Discovery Miles 6 730 Ships in 10 - 15 working days
The Birds of Australia; v.7 (1918-1919) (Hardcover): Gregory M (Gregory Macalist Mathews, J G (John Gerrard) 1842 Keulemans,... The Birds of Australia; v.7 (1918-1919) (Hardcover)
Gregory M (Gregory Macalist Mathews, J G (John Gerrard) 1842 Keulemans, Henrik 1858-1940 Grönvold
R1,245 Discovery Miles 12 450 Ships in 10 - 15 working days
The Birds of Australia; v.4 (1914-1915) (Paperback): Gregory M (Gregory Macalist Mathews, J G (John Gerrard) 1842 Keulemans,... The Birds of Australia; v.4 (1914-1915) (Paperback)
Gregory M (Gregory Macalist Mathews, J G (John Gerrard) 1842 Keulemans, Henrik 1858-1940 Grönvold
R786 Discovery Miles 7 860 Ships in 10 - 15 working days
Waiting to Hear - Coming Into the Place of Peace and Listening (Paperback): John Gerrard Waiting to Hear - Coming Into the Place of Peace and Listening (Paperback)
John Gerrard
R396 Discovery Miles 3 960 Ships in 10 - 15 working days
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