LEAVES 115 



^rccn plants, for the spectacle is like rlream- 

 laiul." ' 



A vcr>' similar effect may be observed if we 

 \'isit a plant of Lady's-mantle './A/r//////^? 7'N/gans) 

 at early mornint^ after a warm dew less ni^ht ; each 

 leaf will be found beautifulK- decked with dew- 

 drops at equal distances round the ed<je of the 

 leaves where the pores have exuded the moisture 

 with which the>' are charged. 



Nasturtium and fuchsia ma}- alsf) be examined 

 for this purpose and will show exudation from 

 their leaf pores. 



If a small quantit}' of wheat is grown in some 

 cocoa fibre, it will illustrate this power of giving 

 off water, for when the little blades arc a few- 

 inches high, the)- will be found each morning 

 tipped with a large dewdrop, the result of exuda- 

 tion during the night. 



In countries where the sun is intense!}' hot, if 

 the lea\es of trees were to be exposed to its full 

 power, the}- would probabl}- w ithcr, and vegetation 

 would perish. 



Against this danger some trees are enabled to 



' " Sliaip Kycs," hy W'm. I himiltDn Gibson. 



