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The Handy Geology Answer Book about science geology and earth science book for geologist
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Turbidity tube with built in Secchi Disk transparency cylinder with wood support 120cm
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Turbidity tube with built in Secchi Disk transparency cylinder with acrylic support 120cm
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Turbidity tube with built in Secchi Disk transparency cylinder with acrylic base support 120cm
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Gridded Sedgewick Rafter Counting Cell, S-R, Gridded. 0.0007" Line Width 1mm Grid.
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Wildco/US Hand corer, Stainless Steel Liner-Type, no case, 36in for core sampling water
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*BRAND NEW* Garmin GPSMAP® 65s Multi-Band Handheld GPS with Sensors, topo map plus 32gb micro SD card
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