CONTENTS. 
PAGE 
1. Hertfordshire Maps : a Descriptive Catalogue of the 
Maps of the County, 1579 to 1900. By Herbert 
George Fordham. Introduction, and Catalogue, Part I: 
1579-1673. (Plates I-VI.). 1 
2. Beport on the Bainfall in Hertfordshire in the Year 1900. 
By John Hopkinson, F.L.S., F.G.S., F.B. Met. Soc., 
3. Notes on Lepidoptera observed in Hertfordshire in the 
Year 1900. By A. E. Gibbs, F.L.S., F.B.H.S. . . 43 
4. Note on the Appearance of a Foreign Beetle (.Biaxenes 
dendrobii ) at Watford. By Atjbeey Stawel-Stoyel .. 46 
5. Notes on Birds observed in Hertfordshire during the Year 
1900. By Alan F. Crossman, F.L.S., F.Z.S., M.B.O.TT. 47 
6. Beport on Phenological Phenomena observed in Hertford¬ 
shire during the Year 1900. By Edward Mawley, 
Sec. B. Met. Soc., F.B.H.S.53 
7. Ostracoda from the Chara-Marl of Hitchin. By Frederick 
Chapman, A.L.S., F.B.M.S. .60 
8. Further Note on the Palaeolithic Deposits at Hitchin. By 
Clement Beid, F.B.S., F.L.S., F.G.S. . 63 
9. Meteorological Observations taken in Hertfordshire in the 
Year 1900. By John Hopkinson, F.L.S., F.G.S., 
F. B. Met. Soc., Assoc. Inst. C. E. ,, 65 
10. List of the Lepidoptera of Cheshunt and its Neighbourhood. 
By W. C. Boyd .75 
11. List of Works on the Geology of Hertfordshire, 1884-1900. 
By John Hopkinson, F.L.S., F.G.S., Assoc. Inst. C. E. 87 
12. Address.—Progress during the Nineteenth Century. By 
the President, Lewis Evans, F.S.A., F.B.A.S.105 
13. Notes on the Fish of the Upper Lea. By James Saunders, 
A.L.S. .. 119 
14. The Climate of Hertfordshire, deduced from Meteorological 
Observations taken during the Twelve Years 1887-1898. 
By John Hopkinson, F.L.S., F.G.S., F. B. Met. Soc., 
Assoc. Inst. C. E. (Plate VII.). 121 
