Ftp, 17 — Fordson Tractor Adapted to Salt- 

 Marsh Ditching 



the flood tide. In 

 this way all tide-wa- 

 ter is absolutely ex- 

 cluded from the mea- 

 dow, and it is then 

 necessary to provide 

 for surface and 

 storm drainage only. 

 If sufficiently rapid 

 drainage does not 

 follow this method, 

 an auxiliary pump 

 may be installed and 

 the water pumped 

 out. Filling also is 

 a means of ridding 

 the salt marsh of 



Fig. 18 — The Plow Handled by the Tractor, 

 Throwing Out the Sods in Two Ribbons 



mosquito - breeding 

 places, but the cost of 

 filling large areas is 

 generally prohibitive 

 and the usual means 

 of control are ditch- 

 ing, diking and tide- 

 gating, and filling of 

 small areas, or large 

 areas when feasible. 

 The steps in salt- 

 marsh ditching are 

 shown on this page. 

 The method of dik- 

 ing and tide-gating 

 is shown on page t4. 



p IG . 19 — a Completed Ditch tn Atlantic Cottwt\ 



13 



