vf List of Illustrations. 



FIG. 



1 8. The Caterpillar of the Elephant Hawk-moth (Charocampa 



elpenor). Fourth Stage. After \Veissmann. 



19. The Caterpillar of the Elephant Hawk-moth. (Charocampa 



elpenor). Fifth Stage. After Weissmann. 



20. The Caterpillar of the Small Elephant Hawk-moth (Ckarocamj 'a 



porcellus}. After Weissmann. 



21. White Deadnettle (Lamium album). After Bentham. 



22. Flower of White Deadnettle (Lamium album). 



23. Section of the Flower of White Deadnettle (Lamium album}. 



24. Meadow Geranium (Geranium pratense). After Bentham. 



25. Common Sundew (Drosera rotundijolia}. After Bentham. 



26. Common Bladderwort (Utricularia vulgaris). After Bentham. 



27. Broad Dock (Rumex obtusifolius). After Bentham. 



28. Common Willow Herb (Epilobium anguslifolium). After 



Bentham. 



29. Common Mallow (Malva sylvestris). After Sowerby. 



30. Dwarf Mallow (Malva rotundifolia}. After Sowerby. 



31. Stamens and Stigmas of the Common Mallow (Malva sylves- 



tris). After Miiller. 



32. Stamens and Stigmas of the Dwarf Mallow (Malva rotundifoha}. 



After Miiller. 



33. Common Willow Herb (Epilobium angustifolium). After 



Sowerby. 



34. Hoary Willow Herb (Epilobium parviflorum}. After Sowerby. 



35. Meadow Geranium (Geranium pratense). Young flower and 



older flower. After Hildebrand. 



36. Common Arum (Arum maculatuni). Diagrammatic section. 



37. Sage (Salvia qffidnalis). Section of a young flower. After Ogle. 



38. Sage (Salvia ojficinalis} visited by a Bee. After Ogle. 



39. Sage (Salvia officinalis). Section of an older flower. After Ogle. 



40. Stamens of Sage (Salvia qffidnalis) in their natural position. 



After Ogle. 



41. Stamens of Sage (Salvia ojficinalis) when moved by a Bee. 



After Ogle. 



42. Wild Chervil (Charophyllum sylvestre). After Bentham. 



43. Floret of Feverfew ( Chrysanthemum partheniuni). Just opened. 



After Ogle. 



