136 ETON NATURE-STUDY 



remains. As a rule, it is very brittle, and breaks easily ; this matter 

 may, however, be obviated to some extent by soaking the woody 

 parts in glycerine and water. 



Skeleton leaves, particularly upon the poplar, Fmay also be found 

 in a pretty fairly perfect condition, or these may be made (see 

 figures 129 and 130) by soaking leaves in water and removing the 

 soft parts, when they have become sufficiently rotten, by brushing 

 them away. 



From a photograph by Wilfred Mark Webb of a specimen kindly made by Mrs Brightwen, F.E.S. 

 FIGURE 130. The skeleton of an Indiarubber-Plant leaf. 



