Xli CONTENTS. 



No. V. THE ARBOREAL STEM. 

 Wood of the Oak (Quercus) ..... pp. 2O8 21O. 



No. VI. THE ARBOREAL STEM. 

 Bark of the Oak (Quercus). Formation of cork in the Beech 



pp. 21O 211. 



No. VII. THE LEAF. 



Leaf of the Hellebore (Helleborus). Injection of Leaves. Phyllotaxy 

 of the Groundsel (Senecio vulgaris) .... pp. 212 213. 



No. VIII. REPRODUCTION. 

 Pleurococcus. Spirogyra. Mucor . . . pp. 213 215. 



No. IX. THE FERN. 

 Khizome of the Bracken Fern (Pteris aquilina) . pp. 215 217. 



No. X. REPRODUCTION OF THE FERN. 



Sporangia of Pteris, Aspidium, Polypodium, Germinating spores. 

 Prothallus. The young sporophyte . . . pp. 217 219. 



No. XL THE FLOWER. 



Flower of the Buttercup (Ranunculus), of the Bean (Vicia faba). 

 Anther of the Marsh Marigold (Caltha palustris) . pp. 219 22O. 



No. XII. THE FLOWER (continued) DICHOGAMY. 



Flower of the Dog-Daisy (Chrysanthemum leucanthemum). Flowers of 

 Plantain (Plantago) and Silene .... pp. 22O 222. 



No. XIII. THE SEED. 



Stigma of Evening Primrose (CEnothera) with germinating pollen 

 grains. Ovules of Marsh Marigold (Caltha palustris). Embryology of 

 Shepherd's Purse (Capsella bursa-pastoris). Flower of the Cherry (Prunus 

 cerasus). Young fruit of the Gooseberry (Ribes grossularia) 



pp. 222224. 



No. XIV. THE FRUIT. 



Fruits of the Cherry (Prunus cerasus), Pear (Pyrus communis), Ash 

 (Fraxinus excelsior), Gooseberry (Ribes grossularia), Dandelion (Tarax- 

 acum dens-leonis), Herb Bennet (Geum urbanum) . pp. 224 227. 



pp. 229 235. 



