96 
J. HOPKINSON—LIST OF WOLFS 
222. Geological Survey. Index Map. Sheet 12. Scale 4 miles 
to one inch. (Herts in North-west corner.) Lithographed edition 
published in 1896. 
223. Green, IJ. Field Meeting .... Bennet’s End, Hemel 
Hempstead. Trans. Herts Nat. Hist. Soc., vol. vi, pt. 8, 
pp. lxii-lxiii, pi. v. 
224. Grover, J. W. An Explanation of the London Water 
Question. Trans. Surveyors’ Inst., vol. xxiv, pt. vii, pp. 195-230. 
(Geology of Herts, pp. 214-219.) 
225. [Hopkinson, J.] Field Meeting .... Welwyn, Ayot, 
and Wheathamstead. Trans. Herts Nat. Hist. Soe ., vol. vi, pt. 8, 
pp. lxiv-lxv. 
226. [Hopkinson, J.] Field Meeting .... St. Albans, lb., 
pp. lxvii-lxviii. 
227. Hopkinson, J. Excursion to St. Albans. Proc. Geol. Assoc., 
vol. xii, pt. 8, pp. 342-344. Field Meeting .... St. Albans. 
Trans. Herts Nat. Hist. Soc., vol. vii (1894), pp. xxiii-xxv, pi. iv. 
228. Lobley, I. L. The Supply of Water to London in the 
Near and Distant Future. County Council Times. Beprint. 8vo. 
London. (Herts Geology, pp. 13-18.) 
229. Martin, E. A. On the Underground Geology of London. 
Science Gossip, no. 335, pp. 251-254, and no. 337, pp. 11-15 
(1893). (Ware and Cheshunt.) 
230. Newton, E. T. Note on an Ignanodont Tooth from the 
Lower Chalk (“Totternhoe Stone”) near Hitchin. Geol. Hag., 
dec. iii, vol. ix, no. 2, pp. 49-50. 
1893. 
231. Evans, Sir J. Hertfordshire and its Water Supply. Herts 
lllustr. Review, vol. i, no. 1, pp. 4-8. 
232. Flower, Major L. The Fiver Lee “up to date.” 8vo. 
London. (Geology, pp. 7-8.) 
233. Jukes-Browne, A. J. The Amount of Dissemination of 
Silica in Chalk considered in Delation to Flints. Geol. Hag., 
dec. iii, vol. x, no. 12, pp. 541-546. (Analysis of Hitchin chalk, 
pp. 543-544.) 
234. Morison, Dr. J. Ice and its Work. Trans. Herts Nat. 
Hist. Soc., vol. vii, pt. 5, pp. 147-156. (Herts, pp. 153-156.) 
235. Smith, W. G. Man : the Primeval Savage. 8vo. London. 
(Chiefly Caddington, Herts.) 
236. Topley, W. Excursion to Amwell and Chadwell Springs. 
Proc. Geol. Assoc., vol. xiii, pt. 5, pp. 123-125. 
237. Valon, W. A. McI. Inaugural Address. Trans. Soc. 
Engineers for 1893, pp. 1-24. (Geology of New Barnet and South 
Mimms, pp. 6-7.) 
238. Whitaker, W. On Maps showing the Area of Chalk 
available for Water Supply in the London Basin. Trans. Sanitary 
Inst., vol. xiii, pp. 243-253. (Includes Herts.) 
