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WILLIAMSON (W. C.) On the Organization of the Fossil Plants of the 

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 Organisation of Volkmannia Dawsoni from the Lower Coal- 



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WILLIAMSON AND SCOTT. Further Observations on the Organisation of 

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WILLIS AND BURKILL. Flora of the Pollard Willows near Cambridge. 

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WILLS (A. B.) On the Desmidieae of North Wales. 1881. 8vo, plate, is, 



WILSON (W.) BRYOLOGIA BRITANNICA, containing the Mosses of 

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 of Hooker and Taylor's Muscologia Britannica. London, 1855. 8vo, 61 

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WINCH (N. J.) Additions to the Flora of Northumberland and Durham. 

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WINCH (N. J.) Botanist's Guide through Northumberland and Durham. 

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Contributions to the Flora of Cumberland. Newcastle, 1833. 4to, 



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WOOD (R.) Contribution towards a List of Cumberland Mosses. 8vo, is. 



Further Additions to the Flowering Plants of Cumberland. 1883. 



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WOODFORDE (J.) A Catalogue of the Indigenous Phenogamic Plants 

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