US$ 72.00
Seventy-times enlarged skin cross section reveals epidermis
Selected through four rotary-switch decades from 0 to 11
and numbered anatomical details for comprehensive teaching
Lead-free five-cylinder equal-mass set at 30g each in zinc
Tangent Galvanometer for Magnetic Field Measurement Subcategory_Botany Models Seventy-times enlarged skin cross sectionTangent galvanometer instrument that derives current absolutely from compass needle deflection against Earth's horizontal field, the basis for classic determinations of the local BH constant.
US$ 72.00
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