364 



APPENDIX D. 



Very similar results were obtained by Dr. Krocker in his 

 analyses of drainage water from Proskau. (See Liebig and 

 Kopp's ' Jahresbericht ' for 1853, page 742.) 



* a. Drainage water from land A (a clay soil resting on a subsoil of calcareous 

 loam or clay), collected 1st April, 1853. — b. The same, collected 1st May, 1853, 

 after a heavy fall of rain (218 cubic inches on the square foot). — c. Drainage water 

 from the same soil, mixed with drainage water from a humous clay soil, with 

 calcareous clay or loam as subsoil, collected in October 1853. — d. Drainage water 

 from land B (tile-drained ; subsoil of calcareous clay or loam), collected in October 

 1853. — e. Water passing tlirough the water-furrows from a heavy clay soil, collected 

 in the beginning of June.—/ The same, collected in the middle of August, after 

 heavy rains. 



