WINTERING AND PROPAGATING 57 



what must be thrown away. In this the 

 greatest care must be exercised as many of 

 the most valuable types produce tubers often 

 not larger than a pea. 



While sorting the tubers, carefully remove 

 the mud clinging to them, taking care not to 

 injure the eyes. Then place them in rather 

 dry sand, where they can remain till the time 

 comes to start them into growth. 



THE season's OPENING 



The new season's work begins about 

 March ist, when the tubers must be taken 

 from the sand storage and potted up, accord- 

 ing to size, in a 3- or 5-inch pot. Use a plain, 

 heavy loam without adding either sand, 

 leaf-soil or manure, but a little sand may be 

 placed on the surface of the soil after potting 

 is done. This will help to keep the plant 

 free from algal growth, and to a certain extent 

 prevent the accumulation of scum on top of 

 the water. 



The pots containing the tubers must be 



