82 W. WHITAKEE — WORKS ON THE GEOLOGY OF HERTFORDSHUIE. 

 1866. 



43. Green, A. H. On Supposed Faults in the Diift-gravel at 

 Hitchin. Geol. Mag. vol. iii. p. 572. 



44. Salter, J. W. On the Faults in the Drift-gi-avel at Hitchin, 

 Herts. Quart. Journ. Geol. Soe. vol. xxii. p. 565. 



1867. 



45. Salter, J. W. (Letter on) Faults in the Drift at Hitchin. 

 Geol. Mag. vol. iv. p. 40. 



46. Whitaker, "W. On Subaerial Denudation, and on Cliffs and 

 Escarpments of the Chalk and the Lower Tertiary Beds. (Part 2.) 

 Geol. Mag. vol. iv. p. 483. [Tertiary Escarpment, etc., in Herts, 

 pp. 486, 487.] 



47. Whitaker, W., and F. J. Bennett. Part of Sheet 46, N.E. 

 of the Map of the Geological Survey of England. Scale, one inch 

 to a mile. (Baldock, Hitchin.) 



48. Whitaker, W., T. McK. Hughes, A. H. Green, W. 

 ToPLEY, and R. H. Tiddeman. Sheet 46, S.E. (all hut N.W 

 corner) of the Map of the Geological Survey of England. Scale, 

 one inch to a mile. (Hatfield, Hertford, Stevenage.) 



49. Wood, S. Y., jun. On the Structure of the Post-Glacial 

 Deposits of the South-east of England. Quart. Journ. Geol. Sac. 

 vol. xxiii. p. 394. 



50. Wood, S. V., jun. (Letter on) the Faults in the Drift at 

 Hitchin, etc. Geol. Mag. vol. iv. p. 37. 



1868. 



51. Hughes, T. McK. On the Two Plains of Hertfordshire and 

 their Gravels. Quart. Journ. Geol. Soc. vol. xxiv. p. 283. 



52. Whitaker, W. The N.W. corner of Sheet 1, N.W. of the 

 Map of the Geological Survey. Scale, one inch to a mile. 

 (Hoddesdon.) 



53. Whitaker, W. Sheet 79 of the Horizontal Sections of the 

 Geological Survey of England. Scale, 6 inches to a mile. Across 

 the London Basin from Beddington ... to ncjar Hcmel Hempstead. 



54. Wood, S. V., jun. On the Pebble-beds of Middlesex, Essex, 

 and Herts. Quart. Journ. Geol. Soc. vol. xxiv. p. 464. 



1871. 



55. HoPKiNsoN, J. Excursion to AVatford, June 23rd, 1870. 

 Froc. Geol. Assoc, vol. ii. No. 2, p. 43. 



1872. 



56. Walker, H. On the Glacial Drifts of North London. Froc. 

 Geol. Assoc, vol. ii. No. 7, p. 289. 



57. Whitaker, W. The Geology of the London Basin. Part 1. 

 The Chalk and the Eocene Beds of the Southern and Western 

 Tracts. Mem. Geol. Survey, vol. iv. 



1873. 



58. HoPKiNsoN, J. Excursion to Watford, April 13th, 1872. 

 Proc. Geol. Assoc, vol. iii. No. 2, p. 65. 



