NATURAL PERIODIC PHENOMENA. 293 



March 29. Wheatear (Saxicola oenanthi), arrives. 



31. Rosa canina (Dog rose), fol. 

 April 4. Stellaria holostea (Stitchwort), fl. 



5. Oxalis acetosella (Wood-sorrel), fl. 



— Adder (Pelius Berus), seen. 



6. Acer pseudo-^olatanus (Sijcamore), fol. 



— (Esadus hippocastanum (Horse chestmd), fol. 



— Sioallow (Hirimdo rustica), seen. 



10. Primus spinosa (Blackthorn), fl. 



11. Pdhes nigrum (Black currant), fol. 



13. Cochlearia anglica (English Scurvy-grass), fl. 



— Ligustrum vulgctre (Privet), fol. 



— Ranunculus hederaceus, fl. 



— Larix europcea (Larch), fol. 



— Draba verna, fl. 



14. Snake (Matrix torquata), seen. 

 . — Fraxinus excelsior (Ash), fl. 



— Anemone nemorosa, fl. 



15. Adoxa Moschatellina, fl. 



18. Cuckoo (Cuc'ulus canorus), heard. 



— Fragaria vesca (Wild Strawberry), fl. 



— Betida alba (Birch), fol. 



— Primula veris (Cowslij)), fl. 



— Caltha palustris, fl. 



19. Vaccinium uliginosum, fl. 



— Corylus avellana (Hazel), fol. 



— Orchis mascula, fl. 



— Cytisus scoparius (Broom), fol. 



— Hyacinthus non scriptus (Bluebell), fl. 



— Ranunculus acris, fl. 



— Tilia europeea (Lime tree), fol. 



— Cardamine pratensis, fl. 



21. Ranunculus flammula, fl. 



— Orobus tuberosus, fl. 



22. Sorbus ancuparia, fol. 



25. Quercus pe/lunculatus (Bimrf Oak), fol. 



26. Fumaria officinalis, fl. 



27. Geranium pusillum, fl. 



28. Allium ursinum (Wild Garlic), fl. 



