of various manures on the damage wrought by Nematodes. Similar experiments 

 have been for many years conducted by us on various farms with fields badly 

 infested with Nematodes. 



In order to admit of the Nematodes having their greatest effect, the crop rotation is 

 fixed as Sugar-Beet, Barley, Sugar-Beet, Barley, etc. The size of the individual plots 

 averages for the most part about an eigth of an acre, and there are always two 

 control plots. The beets receive always the following quantities of manure per acre: 



P.. 05) 



The manure quantities were somewhat altered in the case of Barley; Plots 3 and 

 4 remain respectively without Potash and Phosphates. The experiments are for 



20 — 



