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An operating stage has been constructed to facilitate rapid inoculation of small insects. Twenty holders, fastened onto a single axis, are adjusted simultaneously by a lever at the rear of the instrument. The multiple-insect holder measures 12 × 6.5 cm at its base, and it is constructed of brass, stainless steel, and lucite acrylic plastic.
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Maramorosch et al. (1970) studied this question.
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