Plate VIII 
]. The Water Soldier (Stratiotis aloides). 
2. The Floating Plantain (Alisma natans). 
3. The Arrow-head (Sagittaria sagittifolia). 
4. Tl.e Yellow Iris [Irispseudacorus) 
5. The Crayfish (Astacusfluviatilis). 
C. The Tree Frog (Rana arborea). 
