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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Objective Lens Diameter: 42 mm
mud or high humidity
reliable and accurate way to ensure that your turbidity meter is performing to manufacturer specifications
Product Code: CT-6706
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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