OYSTER-SHELLS. 413 



bushels per acre, on liis fen farm ; but dlscontinucJ it, as 

 it did not answer. 



" In East Norfolk, lime is successfully used, even after 

 marie. It is of the greatest efficacy on hot burning soils, 

 and is perhaps the most effedlual cure oi scalds : hence 

 considered as a cold manure." — Marshall. 



GYPSUM. 



■VTr. Allen tried this manure, very carefully, at Stan- 

 how, on clean clover. 



March 31. No. i and 4. No manure; produce average 

 of the two, 381b. 60Z. 



2. Four quaits sifted coal-ashes kept dry, 50 lb. 



^. Gypsum, one quart, 54! lb. 



The ashes, therefore, gave an increase of 11 lb. looz. 

 and the gypsum of 1 6 lb. 2 oz. 



OYSTER-SHELLS. 



In East Winch and West Bilney, and scattered for ten 

 miles to Wallington, there is a remarkable bed of oyster- 

 slielli in sea-mud ; the farmers use them at the rate of 10 loads 

 an acre for turnip?, which are a very good dressing ; they 

 are of particular efficacy on land worn out by corn. Mr. 

 FoRSTER several years ago laid 20 loads an acie on some 

 worn-out land, and they had an amazing efFe6l in pro- 

 ducing grass, when laid down in seeds, giving a deep 

 luxuriant hue like good dung: the benefit very great at the 

 present time. They are found within two feet of the sur- 

 face, and as deep as they have dug, water having stopped 

 them at 16 or 18 feet deep. They are used again and 

 again on the same land, and with the same effie^l'. At 

 East Winch, Mr. Crowe has acres together of this 



most 



