TRANSACTIONS 



OF THE 



HERTFORDSHIRE 



NATURAL HISTORY SOCIETY 



AND 



FIELD OLUB. 



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



Assoc. Inst. C.E., Sec. Ray Society. 



VOLUME XIII. 

 October, 1905, to July, 1907, 



LONDON : 



DULAU & CO., 37, SOHO SQUARE, W, 

 HERTFORD : STEPHEN AUSTIN & SONS, LTD. 



1908. 



