82 



PROCEEDINGS OF THE ACADEMY OF 



[Feb., 



Sodium bicarbonate (strong). — College Park, Maryland: No response. 

 Sodium bicarbonate (weak). — Auburn, Alabama: No response. 



Potassium bisulphate (weak). — Storrs, Connecticut, and Auburn, 

 Alabama: No response. Lafayette, Indiana: Buds burst February 8; 

 first leaf unfolded February 14; all leaves withered February 24. 



No response was obtained in twigs from Storrs, Connecticut; Auburn, 

 Alabama; College Park, Maryland, and Geneva, New York, in hydro- 

 chloric acid (strong and weak), acetic acid (strong) and nitric acid 

 (strong and weak). 



Acetic Acid (weak). — 



Storrs, Conn. Lafayette, Ind. 



Leaf buds eased February 5. 



Leaf buds burst February 11. 



First leaf unfolded February 14. 



Chromic Acid (strong), — College Park, Maryland: Leaf buds eased 

 February 14. 



Chromic Acid (weak). — Auburn, Alabama: No response. Storrs, 

 Connecticut: Leaf buds eased February 3; leaf buds burst February 

 4; first leaf unfolded February 7; all leaves unfolded February 14; 

 all leaves withered February 21. 



Water. — Lafayette, Indiana : Twigs gave no response. 



Leaf buds eased 



Leaf buds burst 



First leaf unfolded. 

 All leaves unfolded. 

 First leaf withered. 

 All leaves withered. 



College 



Park, 



Maryland. 



Feb. 11. 



Feb. 21. 



Auburn, 

 Alabama. 



Feb. 11. 

 Feb. 15. 

 Feb. 18. 



Geneva, 

 New York 



Jan. 30. 

 Jan. 31. 

 Feb. 3. 

 Feb. 7. 



Feb. 14. 



Storrs, 

 Connec- 

 ticut. 



Feb. 1. 

 Feb. 4. 



Amherst, 

 Massa- 

 chusetts. 



Feb. 1. 

 Feb. 3. 

 Feb. 7. 

 Feb. 11. 

 Feb. 14. 

 Feb. 18. 



Cherry (Governor Wood). — 



No response of twigs from College Park, Maryland, in strong potas- 

 sium chloride, strong sodium bicarbonate, and in water. 



