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| Soil Tester pH Meter | Soil pH TesTabs Kit (Test Tabs) | Soil Nutrients and Fertilizers Kit |
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Catalog #: 1840
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Catalog #: LM5912
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Catalog #: LA318S
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Our price: $18.50
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Our price: $15.79
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Our price: $129.00
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| Soil Composition and Structure | Seismograph Model | Screen Sieves Set of 4 |
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Catalog #: LA1102
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Catalog #: 541
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Catalog #: 3261-5
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Our price: $138.00
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Our price: $34.95
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Our price: $30.50
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| Scale of Hardness Collection | Rocks, Minerals & Gemstones of the U.S. Mounted | Rocks Washington School Collection |
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Catalog #: 2357
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Catalog #: G1101-13
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Catalog #: G1101-7
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Our price: $15.00
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Our price: $58.00
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Our price: $70.00
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| Rocks Sedimentary Rock Collection | Rocks Rock Study Kit | Rocks North American Rock Collection |
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Catalog #: G1101-5
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Catalog #: G1101-1
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Catalog #: G1101-12
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Our price: $18.50
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Our price: $13.50
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Our price: $74.50
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| Rocks Metamorphic Rock Collection | Rocks Introductory Rock Collection | Rocks Introductory Earth Science Collection |
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Catalog #: G1101-4
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Catalog #: G1101-2
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Catalog #: G1101-25
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Our price: $18.50
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Our price: $16.50
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Our price: $48.50
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