TRANSACTIONS of the YORKSHIRE NA TURA LISTS' UNION, 



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

 Yorkshire," by Mr. W. E. Clarke ; of an " Annotated List of the Land and Fresh- 

 water Mollusca of Yorkshire," by Messrs. Win. Nelson and J. W. Taylor ; a 

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

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

 in 1877,' by Mr. T. Porritt, F.L.S. ; one on "Yorkshire Micro-lepidoptera 

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

 and on the Yorkshire sx^ecies of Hemiptera of the Family Psyllidce and a 

 i-eport on Yorkshire Botany in 1877. 



PARTS II. AND III. FOR 1S78 contain the continuations of Mr. Clarke's 

 Birds of Yorkshu'8, and of Messrs. Nelson and Tayloi-"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- 

 Kiding " ; papers on Yorkshire Lepidoptera in 1878, by Porritt, F.L.S. ; on 

 Yorkshire Ichneumonidce, by 3Ir. S. D. Bairstow, F.L.S. ; and on Yorkshire 

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



PART IV. FOR 1879, in preparation.— Amongst papers in iJreparation fo^ 

 future parts is a Catologue of Yorkshire Lepidoptera, to be written by Messrs. 

 G. T. Porritt, F.L.S., and W. Prest. 



The Transactions are supplied to subscribers of 5/- and upwards, annually 

 to the funds of the Union. Intending subscribers are invited to send their names 

 to either of the Secretaiies. 



Geo. Brook, ter, F.L.S., Fembrook, , 



Edgerton, Huddersfield, ( r, 



W. Denison Roebuck, Sunny Bank, i 

 Leeds, ' 



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