Abstract
THE second part of this interesting work is composed of five chapters. The first chapter is devoted to a consideration of the shells of molluscs as ornaments, amulets, as material for the preparation of cameos, as money, trumpets, lamps, etc. The second chapter deals with the electrical deposition of metals on the exterior of animals such as snakes, the sea horse (Hippocampus), etc., by which successful permanent preparations are possible, and in an appendix the method of impregnating similar animals with paraffin wax in order to obtain dry preparations for museum purposes is briefly described. The following chapter is on animal substances employed in powdered form as grinding or polishing materials, as tooth powder (for example, cuttle bone), and on skins, such as those of fishes used in smoothing and polishing ivory and other materials. The chapter on insect galls describes the principal kinds of galls found in commerce, with analyses of the more important.
Die Rohstoffe des Tierreichs.
Herausgegeben von Ferdinand Pax Walther Arndt. Lieferung 2. Pp. 161–400. 18 gold marks. Lieferung 3. Pp. 160. 12 gold marks. (Berlin: Gebrüder Born-traeger, 1929.)
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Our Bookshelf. Nature 125, 666 (1930). https://doi.org/10.1038/125666b0
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DOI: https://doi.org/10.1038/125666b0