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TRA NSA C TIONS of the YORKSHIRE NA JURA LIS TS' UNION, 



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

 by m. 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-lepidoptera 

 in 1877," by Mr. G. T. Porritt, E.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. 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 ol the East- 

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

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

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



W. Denison Roebuck, Sunny Bank, , 



Leeds, [ o_ 



Wm. E. Clarke, i 

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



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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 

 refBrence and labelling, 6d. 

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



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