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TRANSACTIONS oftfieYORKSHIRENA TURALISTS' UNION, 



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

 by Mr. W. E. Clarke, M,B,0 U. ; of an " Annotated List of the Land and Fresh- 

 water Mollusca of Yorkshire," by Messrs. Wm. 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. Wm. Prest ; papers by Mr. S. L, Mosley, on "Yorkshire Diptera,* 

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

 eport on Yorkshire Botany in 1877, by Dr. K F. Parsons, F.G.S. 



PARTS 11. 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 " ; paj)ers on Yorkshire Lepidoptera in 1878, by Mr. Porritt, F.L.S. : on 

 Yoi-kshire lehneumonidce, by Mr, S, D. Bairstow, F.L.S. ; and on Yorkshire 

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



W. Denison Roebuck, Sunny Bank, 



Leeds, q^^„ 

 Wm. E. CtAEEE, P^^^'- 

 5, East YieWj 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 0k Birds' Eggs in England. Catalogues 

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

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" Graduated List of British- BiTds." specially!;! prepared for 

 , reference and labelling, 6d. 

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



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