78 



STOPPAGE OF DAGENHAM BREACH- 



PART I. 



he dovetailed one into the other so as to render them 

 almost impervious to water. He also threw in large 

 quantities of clay outside the piling, and formed a sort of 

 puddle, which served at the same time to resist the force 

 of the water, and to protect the foundation of the piles. 



PERRY'S PLAN OF DAGENHAM BREACH. 



A. The Dam whereby the Breach was stopped. 



B. The site of Boswell's works. 



C. The site of the Landowners' works. 



I). The site of Perry's Sluices. 



E. The site of Boswell's Sluices. 



F. A Dam and Sluice made for recovery of the 



Meadows shortly after the Breach had 



occurred. 



G. Small Sluice for drainage of the land waters. 

 HII. The dotted line represents the extent of 



the inundation caused by the Breach. 

 I. Places where stags' horns were dug up. 

 K. Parallel lines, showing the depth at low 



water at every 60 yards dstancie from 



the shore. 



Scarcely had Perry commenced this part of the work, 

 and proceeded so far as to exhibit his general design, than 

 Boswell, the former contractor, presented a petition to 

 Parliament against the engineer being allowed to go on, 

 alleging that his scheme was utterly impracticable. The 

 work being of great importance, and executed at the pub- 

 lic expense, a Parliamentary Committee was appointed, 

 when Perry was called before them and examined at 



