VI 
CONTENTS. 
PAGE 
17. Notes on Birds observed in Hertfordshire during the year 
1903. By William Bickerton .125 
18. Notes on some Hertfordshire Mammalia. By A. E. Gibbs, 
E.L.S., F.R.H.S.! . ..135 
19. The Gravels of Hertfordshire. Bv A. E. Salter, D.Sc., 
E.G.S.*.137 
20. Address.—The History of Botanic Illustration. By the 
President, B. Daydon Jackson, E.L.S., General Secretary 
of the Linnean Society. (Plates I-III and Eig. 23.). . 145 
21. Coleoptera new to the Hertfordshire Eauna. By A. E. 
Gibbs, E.L.S., E.R.H.S. .156 
22. A Neolithic Celt found near Berkhamsted Common. By 
Sir John Evans, K.C.B., H.C.L., Sc.D., E.R.S., etc. 
(Eig. 24.) .. ..157 
23. Notes on Lepidoptera observed in Hertfordshire in the 
year 1904. By A. E. Gibbs, E.L.S., F.R.H.S.159 
24. Notes on Yariation in Melitcea aurinia ( artemis ). By Y. P. 
ICitchin, B. A. (Plate IV.).165 
25. Coleoptera observed in Hertfordshire in 1904. By 
E. George Elliman .168 
26. Hertfordshire Maps: a Descriptive Catalogue of the Maps 
of the County, 1579 to 1900. By Herbert George 
Eordham. Part II, 1673-1794 (concluded) \ Part III, 
1794-1900 (to be continued'). (Plate Y and 2 figs.) .. 169 
27. Meteorological Observations taken in Hertfordshire in the 
year 1904. By John Hopkinson, E.L.S., E.G.S., 
Y. P. R. Met. Soc., Assoc. Inst. C. E. 209 
28. Report on the Rainfall in Hertfordshire in the year 1904. 
By John Hopkinson ..217 
29. Notes on Birds observed in Hertfordshire during the year 
1904. By William Bickerton. . . .. 226 
30. Report on Phenological Phenomena observed in Hertford¬ 
shire during the year 1904. By Edward Mawley, 
E. R. Met. Soc., E.R.H.S., Y.M.H.237 
31. The Comparative Rate of Growth of a Pedunculated and 
a Sessile Oak at Bayfordbury, Herts. By John 
Hopkinson, E.L.S., E.G.S., Y. P. R. Met. Soc., Assoc. 
Inst. C. E. (Plate YI and Figs, 25 and 26.) . . .. 245 
32. Some recently-exposed Beds in the Yalley of the Gade, at 
and near Hunton Bridge. By T. E. Tones, M.A., 
LL.D., B.Sc. (Eigs. 27 and 28.).. .. .. 253 
Index... . . 257 
Proceedings, February, 1903, to July, 1905, pp. ix-lxxii. 
[To be inserted, in binding, before the Transactions.] 
