NATURAL PERIODIC PHENOMENA. 167 
May 1. The White-thorn, (Cratzgus oxycantha), fl. 
2. Horse-chesnut, (Aisculus hippocastanum), fl. 
6. Swift, (Cypselus Apus), arrives. 
7. Bugle, (Ajuga reptans), fi. 
12. Elder, (Sambucus nigra), fl. 
15. Mountain Ash, (Sorbus aucuparia), fl. 
27. Earth-nut, (Bunium flexuosum), fl. 
June 1. Wild Strawberry, (Fragaria vesca), ripens fruit. 
24. Vicia eracca, fi. 
— Betony, (Betonica officinalis), fl. 
25. Jasione montana, fl. 
26. Habenaria chlorantha, fi. : 
29. Cicada spumaria froths, called cuckoo spit. 
July 1. Self-heal, (Prunella vulgaris), fi. 
— Wild Thyme, (Thymus serpyllum), fi. 
6. Catch-fly, (Silene anglica), fi. 
— Tutsan, (Hypericum Androsemum), fl. 
7. Centaury, (Erythrea Centaurium), fi. 
14, Agrimony, (Agrimonia Eupatoria), fl. 
17. Golden Rod, (Solidago virgaurea), fl. - 
25. Verbascum thapsus, fl. 
26. Yellow Toad-flax, (Linaria vulgaris), fl. 
% % % * 
(I regret this unavoidable gap. ] 
December 23. Thrush, (Turdus musicus), sings. 
— Gnats abundant. 
— Man. Hooping cough prevails. 
31. Galanthus nivalis, fl. 
H3 
