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Objective Lens Diameter: 42 mm
This affordable and precise logger is recommended for aquatic biology and hydrology research projects
Product Code: CT-6706
The transparent acrylic body provides immediate visual inspection of the collected sample
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Book "Amphibians of Oregon, Washington and BC" Turbidity Testing Objective Lens Diameter: 42 mmProduct Code: BK AOWBC by Charlotte Corkran (Author) Frogs, toads and salamanders are important indicators of the quality of the environment, and theyre cute little critters too. Newly revised and updated, this innovative field guide describes the life histories, habitat requirements and vulnerabilities of 38 species of amphibians in the Pacific Northwest. Color photographs and illustrated keys help identify all life stages of each species. As well, a
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