Anne Troelstra's fine bibliography is an outstanding and ground-breaking work. He has provided the academic world with a long-needed bibliographical record of human endeavour in the field of the natural sciences. The travel narratives listed here encompass all aspects of the natural world in every part of the globe, but are especially concerned with its fauna, flora and fossil remains. Such eyewitness accounts have always fascinated their readers, but they were never written solely for entertainment: fragmentary though they often are, these narratives of travel and exploration are of immense importance for our scientific understanding of life on earth, providing us with a window on an ever changing, and often vanishing, natural world. Without such records of the past we could not track, document or understand the significance of changes that are so important for the study of zoogeography. With this book Troelstra gives us a superb overview of natural history travel narratives. The well over four thousand detailed entries, ranging over four centuries and all major western European languages, are drawn from a wide range of sources and include both printed books and periodical contributions. While no subject bibliography by a single author can attain absolute completeness, Troelstra's work is comprehensive to a truly remarkable degree. The entries are arranged alphabetically by author and chronologically, by the year of first publication, under the author's name. A brief biography, with the scope and range of their work, is given for each author; every title is set in context, the contents - including illustrations - are described and all known editions and translations are cited. In addition, there is a geographical index that cross refers between authors and the regions visited, and a full list of the bibliographical and biographical sources used in compiling the bibliography.
During the past decade there have been many changes in the perfumery industry which are not so much due to the discovery and application of new raw materials, but rather to the astronomic increase in the cost of labour required to produce them. This is reflected more particularly in the flower industry, where the cost of collecting the blossoms delivered to the factories has gone up year after year, so much so that most flowers with the possible exception of Mimosa, have reached a cost price which has compelled the perfumer to either reduce his purchases of absolutes and concretes, or alternatively to substitute them from a cheaper source, or even to discontinue their use. This development raises an important and almost insoluble problem for the perfumer, who is faced with the necessity of trying to keep unchanged the bouquet of his fragrances, and moreover, to ensure no loss of strength and diffusiveness. Of course, this problem applies more especially to the adjustment of formulae for established perfumes, because in every new creation the present high cost of raw materials receives imperative con- sideration before the formula is approved.
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