Dieses Buch beschreibt die Botanik und Nutzung von Kautschukpflanzen und anderen Pflanzen der Gattung Apocynaceae. Dabei geht der Autor auch auf die konomische Bedeutung von Kautschuk und den Handel mit Kautschukprodukten ein. Besonders interessant ist der Versuch des Autors, eine einheitliche Nomenklatur f r die verschiedenen Arten und Sorten von Kautschukpflanzen zu entwickeln.
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