L-.- 



4Rv 



iKiiill 



Fn.r 



35. — Periodic pond, Naskeag Point, Brooklin; 

 cat-tails and Eriophorwm tenellum prominent; larches in 

 background. 



Figure 36. — Margin of undrained pond in sphagnum 

 bog, Swans Island ; Chamaedaphne calyculata and Pyrus 

 melanocarpa advancing into pond; water lilies abundant. 



