The Ecozones of the World - The Ecological Divisions of the Geosphere
From the reviews of the second edition: "This is a well organized and concise description of the nine major terrestrial regions of the earth. Each region is described in terms of its distribution, climate, soil, relief and drainage, land use, and vegetation and animals. This allows for an easy comparison of salient factors between regions and also allows the reader to readily focus on a particular aspect of interest … . This is a useful and practical guide and an excellent introduction to biogeography."
Draw Write Now Book 4 - Polar Regions, the Arctic, the Antarctic
Book 4 focuses on the Polar Regions -- Arctic and Antarctic. The books are simple enough for a young child to do independently, but a teacher or parent may present the lessons. Each drawing lesson includes a colorful picture and step-by-step instructions, while the writing lesson includes four simple handwritten sentences. The teacher or parent may introduce letter formation or have the children copy the sentences for handwriting practice, or use the lessons as a springboard for creative writing or report writing.
Aloes are a large genus of plants, about 450 species, from sub-Saharan Africa, Madagascar, and parts of Arabia. Many species are widespread in warm or tropical semi-arid regions, yet the distribution of others is limited to a few living in desert or wet mountainous regions. While some species have been adopted as medicinal plants since ancient times and others are used locally in folk medicine, scientists have yet to discover the full biological activity of the many aloe compounds. In order to realize the vast potential of the genus, it is essential to gather the knowledge acquired over the last fifty years into one comprehensive compilation.
