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TRA NSA CTIONS of the YORKSHIRE N A JURA LfS TS' UNION. 



PART I. FOR 1877 contains the commencement of "The Birds of Yorkshire," 

 by Mr. W. E. Clarke, M.B.O U. ; of an " Annotated List of the Land and Fresh- 

 water MoUusca of Yorkshire," by Messrs. AYm. Nelson and J. W. Taylor ; a 

 complete list of Yorkshire Hymenoptera, with references to literature of that 

 order, by Mr. W. Denison Roebuck ; a paper on " Yorkshire Macro-lepidoptera 

 in 1877," by Mr. G. T. Porritt, F.L.S. ; one on "Yorkshire Micro-lepidoptera 

 in 1877," by Mr. AYm. Prest ; papers by Mr. S. L. Mosley, on "Yorkshire Diptera,' 

 and on the Yorkshire species of Hemiptera of the Family Psyllidce ; and a 

 report on Yorkshire Botany in 1877, by Dr. H. F. Parsons, F.G.S. 



PARTS II. AND III. FOR 1878 contain the continuations of Mr. Clarke's 

 Birds of Yorkshire, and of Messrs. Nelson and Taylor's Land and Fresh-water 

 Mollusca of Yorkshire ; an elaborate report on Yorkshire Botany in 1878, by 

 Dr. Parsons ; the commencement of Dr. ^Parsons' ' ' Moss-Flora of the East- 

 Riding"; papers on Yorkshire Lej^idoptera in 1878, by Mr. Porritt, F.L.S. : on 

 Yorkshire Ichneumonidce, by Mr. S. D. Bairstow, F.L.S. ; and on Yorkshire 

 Hymenoptera, observed in 1878, by Mr. W. Denison Roebuck. 



W. Denison Roebuck, Sxmny Bank, . 



Leeds, c.., 

 Wm. E. Clarke, p^^^* 

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



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NATURAL HISTORY AGENT AND BOOKSELLER. 



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

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



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*' Graduated List of British Birds." specially prepared for 

 reference and labelling, 6d. 

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



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