OF THE ^'W<rf4. 20J942 



SEPTEMBER,] Price 3s. net. [1908. 



TRANSACTION 



OF THE / 



NATURAL HISTORY SOCIETY 



AND 



FIELD GLXJB. 



EDITED BY JOHN ROPKINSON, F.L.S., F.G.S., F.Z.S., 



F. R. Met. Soc, Assoc. Inst. C. E., Sec. Bay Soc. 



VOL. XIII. PART 4. 



CONTENTS : 



PAGES 



21. A Prelimiuaiy List of Hertfordshire Diptera. By A. E. Gibks, F.L.S., 



F.E.S., and Philip J. Baeraud, F.E.S .". 249-276 



Proceedings, Session 1905-1906. {Continued.) xxi 



Report of Visit to the Natui-al History Museum, S. Kensington, 28th April, 



1906. By the Editor xxv 



Reports of the Field Meetings in 1906. Compiled by the Editor. (Plate VII.) xxvii 



Conversazione at St. Albans, 13th November, 1906 xxxiv 



Proceedings, Session 1906-1907 xxxv 



Report of the Council for the year 1906 xxxvii 



Income and Expenditure for the year 1906 xl 



Additions to the Library in 1906 xli 



Report on the Conference of Delegates to the British Association at York in 



1906. By John Hopkinson, F.L.S., F.G.S., etc xliii 



Reports of the Field Meetings in 1907. Compiled by the Editor. (Plate XL) li 



Title Page, Table of Contents, etc ■. i 



Index, etc 277 



list of Members '. i 



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HERTFORD : 



STEPHEN AUSTIN AND SONS, LTD., PRINTERS, FORE STREET. 

 1908. 



