THE NATURALIST'S CALENDAR 401 



Aug. 5 Campanula trachelium (Canterbury 

 bells) fl. 



5 Mentha longifol. fl. 



7 Carllna vulg. (car line thistle) fl. 



7 Rhus cotinus fl. 



7 Ptinus pectinicornis ap. 



8 Arctium lappa (burdock) fl. 



8. Sept. 3 Gentiana amarella (fell-wort) fl. 

 8 Artemisia absinthium (wormwood) fl, 



8 Artemisia vulg. (mugwort) fl. 



10 Centaurea sols.(St. Barnaby's thistle) fl. 



Colchicum autumn, (meadow saiFron)fl. 



Aster (Michaelmas daisy) fl. 



Thalictrum flavum (meadow rue) fl. 



Eryngium marit. (sea holly) fl. 



China asters fl. 



Boletus albus ap. 



Campanula hybrida (less Venus look- 

 ing glass) fl. 



Carthamus tinctor. fl 



Young broods of goldfinches ap. 



Lapwings congregate. 



Papilio semele (black-eyed marble 

 butterfly) ap. 



Birds reassume their spring notes. 



Scabiosa succisa (devil's bit) fl. 



Thistle down floats. 



Conyza squarrosa (plowman's spiken- 

 ard) fl. 



Leontodon autumn, (autumnal dande- 

 lion) fl. 



Flies abound in windows. 



Linnets congregate. 



Bulls make their shrill autumnal noise. 



Aster amellus fl. 



Impatiens balsamina (balsam) fl. 



Carduus marianus (milk thistle) fl. 



Hop picking begins. 



Beeches begin to be tinged with yellow. 



20 



