August Johann Rösel von Rosenhof the fathers of German entomology. The fourth part is practically a monograph of the spider Araneus diadematus. The description of the animal is illustrated by six plates which show the differences in variation of the colouring of the species. They show also internal dissections. Rosenhof was interested in the production of silk but he confused the anus with the opening of silk-producing glands. He published, between 1753 and 1758, "Historia naturalis Ranarum nostratium" devoted to frogs. The quality of the work, in particular of its illustrations, make it one of the most beautiful devoted to these animals. He presented the
Roger Turner (garden designer) Roger Turner (garden designer) Roger Turner is a British garden designer and writer of gardening-related non-fiction books. He trained as an architect, and now practises as a garden designer in Gloucestershire. He lectures widely on garden subjects, and is the author of several gardening books. Turner has given talks in the UK, Ireland and the US on a wide range of gardening subjects, specialising in perennials of all kinds, garden design and garden history. He trained as an architect and now works as a landscape designer. He is a knowledgeable plantsman, active in the Hardy Plant Society, and a founding