Pop. Sou.Rm.irs. VoUIII. I 
Fiq 1 Section from the South Downs to the. North Downs through the Sub Weal den, bore hole. W. Toplqy F.&.S. 
Fig. 5. DiagrconSection from. iheNorthDownstoLondm. Prof. Prestwick Q.J. (r.Soc. M. 34-. Hff- ttsxzsa&assizast 1 
