1. Effect of Ribonuclease on Deproteinized Extract 5-40 (image 1)

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2. Effect of Ribonuclease on Deproteinized Extract 5-40 (image 3)

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3. Effect of Ribonuclease on Deproteinized Extract 5-40 (image 2)

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4. Effect of Ribonuclease on Deproteinized Extract 5-40 (image 4)

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5. Desoxy--Saline Extract of Heated Type III Cells

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6. Desoxycholate - Saline Extract of Heated Intact Type III Cells

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7. Exp. 1 (T[ransforming]. P[rinciple].) Effect of Fluoride on Autolysis of Pneumococcus Type III and on Preservation of the Transforming Principle (image 1)

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8. Exp. 1 (T[ransforming]. P[rinciple].) Effect of Fluoride on Autolysis of Pneumococcus Type III and on Preservation of the Transforming Principle (image 2)

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9. Letter from Oswald T. Avery to Roy Avery

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10. Transformation of Pneumococcal Types

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