Post 8vo., pp. lviii and 588, with three Maps. Price 14s. 
A FLORA OP HERTFORDSHIRE 
BY THE LATE 
ALFRED REGINALD PRYOR, B.A., F.L.S. 
Vice-Pres. Herts. Nat. Hist. Soc. 
EDITED BOB, THE 
HERTFORDSHIRE NATURAL HISTORY SOCIETY 
BY 
BENJAMIN DAYDON JACKSON, Sec.L.S. 
Hon. Memb. Herts. Nat. Hist. Soc. 
WITH AN INTRODUCTION ON THE 
GEOLOGY, CLIMATE, BOTANICAL HISTORY, &c., OF THE COUNTY 
BY 
JOHN HOPKINSON, F.L.S., F.G.S. 
Vice-Pres. Herts. Nat. Hist. Soc. 
AND THE EDITOR. 
LONDON: 
GIJRNEY & JACKSON, Successors to YAN YOORST, Paternoster Row. 
HERTFORD : STEPHEN AUSTIN & SONS. 
1887. 
Report of the Denehole Exploration at 
Hangmans Wood, Grays, 
in 1884 and 1887. 
By T. Y. HOLMES, E.G.S., and WILLIAM COLE, Ron. Sec. 
Essex Field Club. 
With Five Appendices, by E. T. Newton, F.G.S.; F. J. Bennett, 
F.G.S. ; H. B. Woodward, F.G.S.; and F. C. J. Spurrell, F.G.S. 
Being Part XII. (December, 1887) of the “ Essex Naturalist, ” 
the Monthly Magazine of the Essex Field Club. 
Fifty-four pages with Three Coloured Plates and eleven other illustra¬ 
tions , price Two Shillings, post free. 
The report gives a large amount of information as to the nature and probable 
use of the deep Deneholes of Essex, Kent, and elsewhere, as well as details of 
Chalk-wells in Berkshire, Oxfordshire, Buckinghamshire, etc., and an essay on 
the custom of Ensilage or preserving grain in pits, in various countries. 
Published by the Essex Field Club, Buckhurst Hill, Essex. 
