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RYDBERG (PER AXEL) [I860-] A Monograph of 

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Rydberg (P. A. ) Balsaminacea?, Limnanthaceaa. 

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Rydberg (P. A.) & Small (J. K.) Saxifragaceae. - 

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Rydberg (P. A.) & Vail (A. M.) Miss. Zygophyllaceas. 

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RYDER (.JOHN ADAM) [1852-1895] A Contribution 

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RYDIN (.JONAS) Museum naturalium Academise Up- 

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[!] 



RYE (EDWARD CALDWELL) [1832-1885] See ENTOMO- 

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Rye (E. C.) British Beetles : an introduction to the 

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Second edition, revised and in part rewritten by 

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