SECRETARY'S REPORT. 



173 



be arrested, their proper growth will cease, and an effort will 

 be made to repair the injury by sending out small, lateral 

 tubers, from which weak and unhealthy stalks will proceed, at 

 the expense of the original tubers. This is seen in Fig. 98. 

 All will ultimately perish either by the droughts of autumn or 

 the cold of winter. 



Fig. 98. 



Fig. 99. 



Fig. 97. 



5. The tubers, together with one or two of the lower joints 

 of the stalk, remain fresh and green during the winter, if left to 

 take their natural course, but if, by any means, this green portion 

 be severed, at any season of the year, the result will be the 

 death of the plant, when it will appear as in Fig. 99. 



