XXXII.-POND CULTURE.* 



By Carl Nicklas. 



TABLE OF CONTENTS. 



Page. 



Introductiou 1 4 



I.— The laying out and keeping op fish-ponds. 



1. The location of the gromid 7 



2. Tlie conligni-iitioii of the ground 8 



3. The quantity of water 9 



4. The quality of the water 10 



a. j)iu'e spring water 10 



h. snow and rain water 11 



e. .brook and river water ". 11 



(I. peat, marsh, or forest water 11 



e. pond water 11 



5. The quality of the soil 11 



G. Protection against inundations 12 



7. Legal right 13 



8. The cost 13 



II. — The construction op ponds. 



Introduction 13 



1. The dike Ifi 



A. Building the dil<e and constructing the ditches 17 



1. Building earth dikes 17 



2. The construction of the earth-works 28 



B. Covei'ing the dike :'>() 



1. Sod -.U) 



2. Fascine covering 32 



3. Covering of wicker-work 3.') 



4. Earth covering 37 



.5. Wood covering * 38 



C. Stone dikes 38 



D. Fascine dikes 39 



2. The main ditch 39 



3. The side ditches 40 



J. The fish-pit 41 



f). The outside Ash-pit 42 



*Die Teichwirthschaft. From the Lehrbuch der Teiclmnrthschaft (Manual of Pond 

 ^^hiltnre). Translated from the German l>y Herman .Jacobson. 



[1] ' 407 



