204 



On the advance of Spring, 



extremes generally approaches very near to the mean of all the 

 years. 



TABLE T. 



NAMES OF SPECIES. 



TIMES OF BEGINNING TO FLOWER IN 

 THE MOST FAVORABLE SITUATIONS. 



Mean. 



Earliest. 



Latest. 



Common American Alder, 

 A'lnus serruldta. ' 



Earliest Wild Swamp Willow, 

 Sulix conifera. S. erioceph- 

 ala Bigelow. 



Red Swamp Maple, 

 A'cer rhbrum. 



Rue-leaved Anemone, 



Anemone xhalictroides. 

 Common Houstonia, 



Houstdnia. cariilea. 

 Field Horsetail, 



Equisetum arvense. 

 Early Cudweed, 



Gnaphulium plantag'meum. 

 Earliest Sedge, 



Cdrex vdria Auct. J 



Meadow Cowslip, 

 Cdltha paliistris. 



Early Violet, 'Wola ovdta. 



Wood Anemone, ") 



Anemone nemorbsa. \ 



Early Potentilla, or Five } 



Finger, Poteni'dla cana- \ 



dmsis, J 



Dos's Tooth Violet, ^ 1 



Erythrbnium americdnum. I 



Dandelion, j 



Leontodon taraxacum. J 



Juneberry or Shad Flower, 

 Pi/rus botrijdpium. 



Common cultivated English"] 

 Cherry. ! 



Plum tree — Prince's Imperial 

 Gage. 



Pear tree, Vyrus communis- 



Apple tree, Vijrui Ma/us. 



March 22. Feb. 21,1828 Ap. 8, 1829 



April 4. 

 April 15. 



[.April 21. 



April 22. 

 April 23. 



April 24. 



May 5. 



Mar.26, 1328Ap. 17, 1829 



Ap. 1, 1823 



Ap. 22, 18S2 



Ap. 8, 1827 May 3, 1841 



Ap. 8, 1827 May 3, 1841 

 Ap. 11, 1827 May 3, 1841 



Ap. 11, 1827 May 4, 1841 



April 26. Ap. 14, 1827 May 3, 1841 



Ap. 25, 1840 May 19,1838 



May 7. jAp. 26, 1840 May 20,1837 



I I 



May 12. May 1, 1830,May 21,1837 

 May 14. 'May 2, 1830 May 23,1837 



