change is simply described by the rate of income and rate of loss. Our home's energy budget, our firm's inventory, our nation's debt, and humanity's numbers all have accounts that change at rates that are equal to the inputs minus the outputs. Jenny's "system view" of the soil was carried into the fertile fields of Midwestern American prairies from the laboratories of Switzerland in the late 1920s. Jenny's rate equations provided the other paradigm or world view that, I recall, brought us to the threshold of systems ecology as it later evolved in the second half of the twentieth century. As if world renown in the specialties of pedology and soil chemistry were not enough for one lifetime, excerpts below remind us that Hans Jenny has also been a perceptive outdoor field ecologist since his early Alpine expeditions with Braun Blanquet in the mid 1920s. Jenny's ecosystem studies in the pygmy forest, a further classic example of a soil-plant system "run down" over hundreds of thousands of years since its origin, continue to occupy some of the vigorous retirement time near his farm in Mendocino County. But each specific, quantitative case study, and each research area conserved (with additional hard work) for further study by future generations, fits into Jenny's coherent world view. It is that view, and its legacies of discovery and of tangible landscape preserves, which we are privileged to share with their originator in this volume.

The Soil Resource: Origin and Behavior (Ecological Studies No. 37)

Science & Math

Jenny, Hans

Earth Sciences

Springer, Verlag

"Hans Jenny's … oeuvre ranks among those of the giant in the earth sciences. Even within this rarefied atmosphere of intellectual achievements, his book Factors of Soil Formation stands out as a masterpiece." — from the Foreword by Ronald Amundson, University of California at Berkeley Hans Jenny (1899–1992), who taught at the University of California at Berkeley for 31 years, was a world authority on soils and soil formation. Factors of Soil Formation, his most influential work, is an advanced treatise on theoretical soil science. It has been said that this book, long considered a masterpiece of scientific methodology, had as great an impact on soil science as Charles Darwin's The Origin of Species had on the study of evolution. The book offers both a detailed discussion of the nature of the earth's terrestrial environment and a method of subdividing and studying it. The first two chapters are devoted to definitions and concepts, and methods of presentation of soil data. Chapters 3 through 7 explore the roles of time, parent material, topography, climate and organisms in the formation of soil. Chapter 8 presents conclusions. Though it was written more than 50 years ago, Factors of Soil Formation has not been superseded, nor has Jenny's theory of how soils and ecosystems form been replaced by new factorial theories. Students and professionals working in the fields of pedology, geology and ecology will find this clear, concise study, filled with many of Professor Jenny's own illustrations, stimulating reading.

Factors of Soil Formation: A System of Quantitative Pedology (Dover Earth Science)

Dover Publications

The Soil Resource: Origin and Behavior (Ecological Studies)

Biological Sciences

Springer

This deluxe hardcover edition documents 14 years of meticulous experiments using audible sound to excite powders, pastes and liquids into life-like, flowing forms. Over 350 stunning photographs reflect patterns found throughout nature, art and architecture, inspiring a deep recognition of the generative power of sound and vibration. Cymatics appears in videos, books and presentations by Gregg Braden, Drunvelo Melchizadek, Len Horowitz and many others.

Cymatics: A Study of Wave Phenomena & Vibration

Literature & Fiction

Essays & Correspondence

Macromedia

KYMATIK CYMATICS

Basilius Presse

What effects do vibrations produce in a concrete medium? What effects appear in a system and its environment when wave phenomena are inherent in that system? An answer to these questions was sought first of all in the acoustic field, where experiments revealed a characteristic phenomenology of vibrational effects and wave phenomena with typical structural patterns and dynamics (cymatics). Serial phenomena of this kind were presented in our first volume (Cymatics 1967). These studies are continued in this second volume. Here again, methods have been employed in which the phenomenon is treated as a whole and not anatomized. Why is this? When we observe a phenomenon, it is natural to concentrate on one single factor and make it the focus of our attention. Now, if such a factor is abstracted from its context and allowed to dictate our procedure, the investigation tends to become biased and other characteristics of the object under study are easily missed. The attempt must be made to return time and again to the original phenomenon and time and again to look at is with fresh eyes. (from the Introduction)

Cymatics, Vol 2: The Book

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