THE 



TRANSACTIONS 



OF THE 



XORKSHIRE 



NATURALISTS' UNION 



PART I. — Issued to the Subscribers for the year 



1877. 



CON TE NTS : 



Series B — Vertebrata — Sheet i.* 



Report of the Vertebrate Section for 1877, pp. i to 16. 



Series C — In vertebrata— (exclusive of the Articu- 

 lata) Sheet i.* 

 Report on the Land and Fresh Water Mollusca of Yorkshire. — 

 W. Nelson and Jno. W. Taylor, pp. i to 16. 



Series D — Articulata — Sheets i, 2 and 3. 



Yorkshire Macro-lepidoptera in 1877.— G. T, PoRRiTT, F.L.S., 

 pp. 2 to 10. 



Yorkshire Micro-lepidoptera in 1877. — W. Prest, pp. 11 to 16. 



Yorkshire Hemiptera-Homoptera (faihily Psyllidae) in 1877. — 

 S. L. MOSLEY, pp. 17 to iS. 



Yorkshire Diptera in 1877. — S. L. Mosley, pp. 19 to 22. 



Yorkshire Hymenoptera : Report bn Present State of Knowledge, 

 and first list of species. — Wm. Denison Roebuck, pp. 23 to 60. 



Series E — Botany — Sheet i. 



Report of the Botanical Section for 1877. — Rev. Wm. Fowler, 

 M.A., and H. Franklin Parsons, M.D., F.G.S., pp. i to 8. 



* These sheets are in preparation and will be sent out as soon as ready. 

 They should when received be placed in this Vvrapper. 



TAYLOR BROTHERS, PRINTERS, ST. ANN STREET. 

 1878. 



