CONTENTS. 



XI 



Dbpaetment Bulletin No. 71. — The Wet Lands op Southern Louisiana 



AND Their Drainage. Page. 



Introduction 1 



Location and general conditions 2 



Climate 3 



Soils 6 



Area west of the Atchafalaya River 14 



Crops 16 



Natural drainage conditions 16 



River overflow 19 



Tidal overflow 19 



Description of reclamation districts 22 



Explanation of terms 23 



Area No. 1. Waggaman, Jefferson Parish, La 23 



Area No. 2. Lockport, La Fourche Parish, La 28 



Area No. 3. La Fourche Parish, La „ 33 



Area No. 4. Raceland, La Fourche Parish, La 37 



Area No. 5. Des AUemands, La Fourche Parish, La 42 



Area No. 6. Near Poydras, St. Bernard Parish, La 45 



Area No. 7. Gueydan, Vermillion Parish, La 49 



Area No. 8. New Orleans, La 52 



Results of investigation of reclamation tracts 53 



Area 53 



Soil 53 



Levees 53 



Ditches 54 



Ground water 54 



Reservoir canals 55 



Pumping plants 56 



Vegetation and depth of drainage 57 



Treatment of land and crops 58 



Financial 58 



Success of drainage 59 



Investigations to be made before reclamation 59 



Factors affecting drainage by pumping in southern Louisiana 59 



Area of the district 60 



Levees 60 



Interior ditch system 62 



Lateral ditches 63 



Reservoir canals 64 



Pumping plants 65 



Acknowledgment 82 



Department Bulletin No. 72.- — Suitability or Long-leap Pine por 

 Paper Pulp. 



Southern pines for kraf t pulp 1 



Lumber waste available for pulp making 2 



Pulp-making processes applicable to long-leaf pine ' 3 



Experimental methods 4 



Wood used 4 



Apparatus 5 



Procedure in testing 5 



Determination of yields and properties 6 



Semicommercial tests 7 



