275 



PERIODIC PHENOMENA. 



Observed at Lyston and Llanwame, Herefordshire, average date of occurrence 

 for seven years, from 1850 to 1857. 



Song Thrush sings 

 Chaffinch sings 

 Mezereon flowers 

 Hazel flowers . . 

 Snowdrop flowers 

 Lesser Periwinkle flowers 

 Yew flowers 

 Frogs croaking 

 Yellowhammer sings . . 

 Rooks begin building 

 Pilewort flowers 

 Apricot flowers 



Ringdove cooing 



Alder flowers . . 



Coltsfoot flowers 



Elder buds burst 



Sulphur Butterfly seen 



Daffodil flowers 



Frog spaw-ns . . 



TortoiseshcU Butterfly seen . . 



Gooseberry flowers 



Larch flowers . . 



Wych Elm flowers 



Cowslip flowers 



Chiffchafi Warbler seen 



Herb Mercury flowers 



Humble Bee seen 



Horse-chesnut buds open 



Fieldfares last seen . . 



Field Wood-rush flowers 



Meadow Ladysmock flowers 



Queen Wasp seen 



Cuckoo heard . . 



Swallow seen . . 



Blackthorn flowers 



Blackcap Warbler singing . . 



Redstart or Firetail seen 



Martin seen 



Nightingale heard 



Sand Martin seen 



Strawberry flowers 



January 8 



,, 10 



16 



27 



30 



February 18 



19 

 20 



March 



April 



24 

 30 

 31 



4 



5 



5 



9 



9 



9 



II 



14 



^7 



17 



17 



27 

 27 

 28 



