Converting Factors and Tables of Equivalents Used in Forestry


Book Description

The purpose of this handbook is to provide members of the Forest Service with conversion factors and forest measurements that are more or less frequently encountered in forest literature. These are expressed in tabular form where it appears most advantageous to do so; in the other cases a series of alignment charts have been prepared, which permit the direct determination of values in multiple form. There are included also certain other tables giving data more or less commonly used in forest calculations.













Dictionary Of British And Irish Botantists And Horticulturalists Including plant collectors, flower painters and garden designers


Book Description

Over the past four centuries botanists and gardeners in the British Isles have gathered, maintained and propagated many varying species of plants. Their work has been documented in innumerable books and articles which are often difficult to trace. The Dictionary of British and Irish Botanists and Horticulturalists represents a time-saving reference source for those who wish to discover more about the lives and achievements of the horticulturalists listed. The dictionary's utility comes not only from indicating the major publications of the named authors, but also the location of their herbaria and manuscripts.; The previous 1977 edition of the Dictionary has for many years been a much used source of information for botanists, botanic artists and archivists. In this revised edition the scope has been expanded to include among its 13,000 entries flower painters in addition to botanical artists over 1400 entries and, for the first time, garden designers.; Finally the Dictionary should have international appeal since so many botanists and gardeners worked on collective plants overseas, in particular in North America and the British Commonwealth.; Each entry gives, wherever possible, details of dates and places of birth and death, educational qualifications, professional posts, honours and awards, publications, location of plant collections, manuscripts, drawings and portraits. Its main function, however, is to provide further biographical references to books and periodicals. Comprehensive classified indices facilitate access by professions and activities, countries, and plant interests.




History of Early Named Soybean Varieties in the United States and Canada (1890-2020)


Book Description

The world's most comprehensive, well documented, and well illustrated book on this subject. With extensive subject and geographic index. 95 photographs and illustrations. Free of charge in digital PDF format.







Bibliographical Bulletin


Book Description