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TRA NSAC TIONS of the YORKSHIRE NA TURA LISTS' UNION. 



PABTS V. AND VI. have lately been published, and contain the " List of 

 Yorkshire Lepidoptera" by Mr. Geo. T. Porritt, F.L.S., the continuation of 

 Nelson and Taylor's ' ' Annotated List of Yorkshire Land and Fresh- water 

 MoUusca (Dreissena, Neritina, Paludina, Bythinia, and Valvata)," the conclusion 

 of Bairstow, Roebuck, and Wilson's third list of " Yorkshire Hymenoptera, " 

 and the Reports on "Yorkshire Botany" by Messrs, W. West and F. Arnold 

 Lees, F.L.S. [with plate of Carex saxumbra]. 



The previous Parts may be had at the following prices : — 



Part 1 ... 1877 2/6 to Members, .3/3 to Public. 



2 ... 1878 ... 2/- ,, 2/6 



3 ... „ ... 1/6 „ 2/- 



4 ... 1879 ... 2/3 „ /3/- 



The Transactions are supi>lied to Members of the Yorkshire Naturalists' Union 

 in return for the subscription of 5s. or upwards per annum. Members are also 

 entitled to all excursion programmes and other privileges. Applications for 

 membership may be sent to 



AYv Denison Roebuck, Sunny Bank, 



Leeds, ] Hon. 



Wm. Eagle Clarke, Vsecs. 

 5, East View, Hyde Park Road, Leeds, ) 



H. W. MARSDEN, 



NATURAL HISTORY AGENT AND BOOKSELLER. 



Cabinets and apparatus of all kinds, of the best make on the lowest terms, 



British and European Macro-Lepidoptera, Preserved Larvse of rare Britisis 

 Lepidoptera. 



JBOOKS. — ^New and Second-hand, on Natural History Subjects. 



The largest and best stock of Bird-Skins and Birds' Eggs in England. Catalogues 

 on application. 



"Bijou List of British Butterflies," Beautifully printed in colours 



6d. 



* ' Graduated List of British Birds," specially prepared fox 

 reference and labelling, 6d. 

 "Lepidopterists' Calendar," Limp Cloth, 3/6. Interleaved, 5/- 



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