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Naturally occurring toxins are among the most complicated and lethal in existence. Plant species, microorganisms and marine flora and fauna produce hundreds of toxic compounds for defence and to promote their chances of survival, and these can be isolated and appropriated for our own use. Many of these toxins have yet to be thoroughly described, despite being studied for years. Focusing on the natural toxins that are purely toxic to insects, this book contains over 500 chemical structures. It discusses the concepts and mechanisms involved in toxicity, bioassay procedures for evaluation, structure-activity relationships, and the potential for future commercialization of these compounds. A comprehensive review of the subject, this book forms an important source of information for researchers and students of crop protection, pest control, phytochemistry and those dealing in insect-plant interactions.
This book applies comparative cultural and literary models to a reading of Catullus' poems as social performances of a 'poetics of manhood': a competitively, often outrageously, self-allusive bid for recognition and admiration. Earlier readings of Catullus, based on Romantic and Modernist notions of 'lyric' poetry, have tended to focus on the relationship with Lesbia and to ignore the majority of the shorter poems, which are instead directed at other men. Professor Wray approaches these poems in the light of more recent models for understanding male social interaction in the premodern Mediterranean, placing them in their specifically Roman historical context while bringing out their strikingly 'postmodern' qualities. The result is an alternative way of reading the fiercely aggressive and delicately refined agonism performed in Catullus' shorter poems. All Latin and Greek quoted is supplied with an English translation.
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