A Frozkn Wonld 



213 



smeared. The really vital part of the plant at 

 each nionieiit is, as a rule, tlie top or <^r()\viii^ 

 slioot. Now, it the eiuied poiul-weed were to let 

 itself j^et overtaken bodily by winter, and its top 

 branches or viiforous shoots frozen in the crnst of 

 ice which must ^oon coat the pond, it would be all 



NO. 2.— rilK i.KI'.AT r(>M)->NAII, IN Wl.NIKR. 



up with it. To .L^uard a,Liain>t this calamity, there- 

 fore, the plant has hit upon a dod^e as clever in 

 its way as that of our old fiiend the soldanella, 

 which laid bv fuel to melt the glacier ice in the 

 Alpine spriiii^tide. I'revt'iition, sav> the curled 

 pond-weed, is better than cure. So, in Xo. 3, you 

 catch it in the verv act of iJettinLf ready ceitain 



