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TRA NSAC TIONS of the YORKSHIRE NA JURA US 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 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-iepidoptera 

 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 si:)ecies of Hemiptera of the Family Psyllidce ; and a 

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



r 



PARTS II. AND III. FOR 1S78 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 

 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, Sunny Bank, v 



Leeds, } ^ 



Wm. E. Clarke, . - 



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



H. W. MARSDEN, 



NATURAL HISTORY AGENT AND BOOKSELLER. 



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

 on application. 



*'Bii0U List of British- Entterflies," Beautifully printed in colours 



6d. 



" Graduated List of British Birds." specially prepared for 

 reference and labelling, 6d. 

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



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