OCTOBER] 
Price Is. 
[ 1889 . 
TRANSACTIONS 
OF THE 
HERTFORDSHIRE 
NATURAL HISTORY SOCIETY 
AND 
FIELD CLUB. 
EDITED BY JOHN HOPKINSON, F.L.S., F.G.S. 
YOL. V. PART 6. 
CONTENTS : page 
17. Report on tlie Rainfall in Hertfordshire in 1888. By John Hopkinson, F.L.S., 
F.G.S. 161 
18. The Hessian Fly and its Introduction into Britain. By Eleanor A. Ormerod, 
F.R.Met.Soc., F.E.S. 168 
19. Report on Phenological Phenomena observed in Hertfordshire during the years 
1887 and 1888. By John Hopkinson, F.L.S., F.G.S. 177 
20. Some Notes on the Lepidoptera of St. Albans and its Neighbourhood. By A. 
E. Gibbs, F.L.S. 181 
21. Meteorological Observations taken at The Grange, St. Albans, during the year 
1887. By John Hopkinson, F.L.S., F.G.S. 187 
LONDON": 
GURNEY & JACKSON, Successors to YAN YOORST, PATERNOSTER ROW. 
HERTFORD: 
STEPHEN AUSTIN AND SONS, PRINTERS, FORE STREET. 
