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Set includes revised editions of some issues.
6 lectures at The Hague, April 7-12, 1922; A written report by Rudolf Steiner on the course (CW 82) "There is no contradiction, if you look into the matter correctly, between destiny and freedom. However, in order to be able to present the concept of destiny to the world later on, it was first necessary that the concept of freedom be presented in the book The Philosophy of Freedom." -- Rudolf Steiner (lect. 6) Published here for the first time in English, these six public lectures are among Rudolf Steiner's most inspired --and inspiring --explorations of Anthroposophy as a true science of the spirit. Our age provides abundant explanations of the universe, its nature and evolution. But underl...
Straminipilous Fungi presents a critical comparative review of the morphology and ultrastructure, morphogenesis, cytology, molecular biology and evolution of the biflagellate fungi. These organisms encompass the fungi formerly called oomycetes; taxonomically related heterotrophs studied by mycologists; plasmodiophorids and other heterotrophs. Appropriate comparisons are made with chromophyte algae, marine heterotrophs and chytridiaceous fungi. Little-known taxa which have been referred to the various orders of flagellate fungi are also listed together with citations. A new hierarchical classification is presented which is supported by systematic accounts and synoptic keys. Dichotomous keys based on habitat and habit are given to all known species of lagenidiaceous fungi, labyrinthulids and plasmodiophorids. A unique `one stop' reference resource for plant pathologists is provided by the binominal lists, including host-related lists for the downy mildews. The book, including ca 4000 references, is a major text for post-graduate and research workers, particularly freshwater and marine biologists, soil ecologists and plant pathologists.
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This Handbook supersedes Department bulletin 1366, "A check list of diseases of economic plants in the United States," issued in 1926. It replaces the processed report, "Index of Plant Diseases in the United States," issued in six parts, from 1950 to 1953. The Handbook does not constitute a revision of the "Index," issued from 1950 to 1953. There are no real changes in content. Condensation of the introductory explanation, and some minor changes, mainly in the host descriptions, to permit better arrangement of the printed page, are the most conspicuous differences from the original "Index."