Based on the author's long life of study, observation, and experimentation, this book clears the way for the exploration of many problems in an area of botanical research about which little substantial biochemical information is yet available. Mr. Dostál's investigations largely concern the interrelations among the different organs of plants and the ways in which the various components of the plant correlate to form an integrated whole.
Mr. Dostál writes that he "early acquired the certitude that all regulations in plants take place with an absolute determinism, an iron necessity." He describes many very simple experiments, such as removing all the leaves of a horse chestnut and all the new leaves that follow, until ultimately leaves of an entirely different form, pinnate like those of a legume, develop. Experiments on algae, in parallel with those on higher plants, add to the breadth of the coverage. Much of the work has not been published in scientific journals, and is here presented in simple terms comprehensible to the intelligent layman.
The author also discusses the vital part played by inhibiting substances in the development of the primordia of leaves and other organs, serving as regulators and conservators of reserves, so as to ensure unified organization instead of the chaos that would otherwise result. He finds, too, that his experiments support the idea, now becoming widely accepted, that food for plants may be regarded as a condition rather than a causal factor in their growth and development. As an extension of Mr. Dostál's experimental observations, 40 original figures containing 161 partial illustrations are of exceptional value.
Five toads hop, four brook trout swim, three elk graze, two loons call, and one beaver gnaws on a paper birch tree, all under one North Star. Through bog and marsh, along river and lake, across prairie and into the woods, children learn what lives where by counting the creatures on foot or in flight, swimming or perching in exquisite woodcut and watercolor illustrations created by Beckie Prange and Betsy Bowen in an artistic collaboration. For those looking for more about the pictured wildlife, Phyllis Root includes fascinating facts and information on the state’s ecosystems and the plants and animals that make their homes there.
The story of seeds, in a nutshell, is a tale of evolution. From the tiny sesame that we sprinkle on our bagels to the forty-five-pound double coconut borne by the coco de mer tree, seeds are a perpetual reminder of the complexity and diversity of life on earth. With An Orchard Invisible, Jonathan Silvertown presents the oft-ignored seed with the natural history it deserves, one nearly as varied and surprising as the earth’s flora itself.
Beginning with the evolution of the first seed plant from fernlike ancestors more than 360 million years ago, Silvertown carries his tale through epochs and around the globe. In a clear and engaging style, he delves into the science of seeds: How and why do some lie dormant for years on end? How did seeds evolve? The wide variety of uses that humans have developed for seeds of all sorts also receives a fascinating look, studded with examples, including foods, oils, perfumes, and pharmaceuticals. An able guide with an eye for the unusual, Silvertown is happy to take readers on unexpected—but always interesting—tangents, from Lyme disease to human color vision to the Salem witch trials. But he never lets us forget that the driving force behind the story of seeds—its theme, even—is evolution, with its irrepressible habit of stumbling upon new solutions to the challenges of life.
"I have great faith in a seed," Thoreau wrote. "Convince me that you have a seed there, and I am prepared to expect wonders." Written with a scientist’s knowledge and a gardener’s delight, An Orchard Invisible offers those wonders in a package that will be irresistible to science buffs and green thumbs alike.
Owning and Managing Forests is both an accessible overview of the privileges, rights, and obligations that accompany forest ownership and a guidebook to help active forest owners and managers use laws to their advantage and avoid the pitfalls of expensive and exhausting litigation. The book is a revised, expanded, and updated edition of Legal Aspects of Owning and Managing Woodlands, published in 1998 by Island Press and named Best Forestry Book of the Year by the National Woodland Owners Association.
This edition provides current information on recent changes in property, environmental, and tax laws, while also discussing new directions in forest management. It offers expanded treatment of topics including private property, searching property records, easements, estate planning, timber sale contracts, working with forestry professionals, and how to pass woodlands intact to future generations. The book also describes the many different facets of trusts, changes in forestland taxation methods, and new licensing and certification options. Included, too, is a section on avoiding disputes and how to use alternative dispute resolution methods to avoid costly, troubling, and time-consuming court battles.
Owning and Managing Forests provides clear and concise descriptions of often confusing concepts and difficult subjects, and addresses issues in a competent yet conversational tone. Anyone involved with owning or managing forestland will find the book an essential guide and reference.
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