56 NATURAL PERIODIC PHENOMENA. 



April 3. Primus spinosa, fl. 



5. Cuckoo (Cuculus canorus), seen. 



8. Acer pseudo-platanus, fol. 



13. CucJwo (Cuculus canorus), heard. 



19. Corn-crake (Crex pratensis), heard. 



24. Hyacinthus noii-scriptus, fl. 



25. Sorbus aucuparia,, fol. 



27. Syringa vulgaris, fl. 



28. Fagus sylvatica, fol. 

 May 6. Cytisus laburnum, fl. 



21. Sambucus nigra, fl. 



22. Sorbus aucuparia, fl. 

 June 8. Lotus corniculatus, fl. 



— Horse-fly (CEstrus equus), seen. 



— Lysimachia nemorum, fl. 



9. Cicadia spumaria, froths. 



10. Barley in ear. 



11. Hay liarvest begun. 



12. Rosa canina, fl. 



14. Chrysantliemum leucanthemum, fl. 

 1 6. Stellaria graminea, fl. 



18. Sedum Anglicum, fl. 



20. Valeriana officinalis, fl. 



— Rubus fruticosus, fl. 



21. Erica cinerea, fl. 



26. Jasione montana, fl. 



27. Hyperichum pulclirum, fl. 

 30. Scabiosa arvensis, fl. 



July 5. Betonica officinalis, fl. 



— Prunella vulgaris, fl. 



9. Yerbascum Thapsus, fl. 



13. Rubus fruticosus, fruits. 



14. Eupatorium cannabinum, fl. 



19. Solidago vii^gaurea, fl. 

 August 13. Wheat harvest begins. 



29. Sambucus nigra, fruits. 



2nd Week. Sorbus aucuparia, fruits. 

 September, 1st Week. Acer pseudo-platanus, defol. 

 October 1. Swalloivs (Hirundo rustica), congregate. 



