1909.] 



NATURAL SCIENCES OF PHILADELPHIA. 



81 



Apple (Winesap). — 



Corrosive sublimate (weak).— Lafayette, Indiana: Leaf buds eased 

 February 5; leaf buds burst February 7. 



Twigs from Lafayette, Indiana, in copper sulphate (weak), sodium 

 chloride (weak), ammonium nitrate (strong), ammonium oxalate 

 (weak), showed no response. 



Those from Auburn, Alabama, in potassium chloride (weak) and 

 sodium bicarbonate showed no response. The twigs from College 

 Park, Maryland, in strong hydrochloric acid did not respond. Neither 

 did those from Geneva, New York, in strong nitric acid and strong 

 chromic acid. 



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

 February 3 ; leaf buds burst February 4 ; first leaf unfolded February 1 1 . 



Water. — Twigs from Auburn, Alabama, did not respond. 



Apple (York Imperial). — 



Corrosive sublimate (weak). — Storrs, Connecticut: Leaf buds burst 

 February 4. 



Copper sulphate (weak). — Storrs, Connecticut: Leaf buds eased 

 February 4; leaf buds burst February 5. 



Sodium chloride (weak). — Storrs, Connecticut: Leaf buds eased Feb- 

 ruary 4; leaf buds burst February 5; first leaf unfolded February 7. 

 Amherst, Massachusetts : Leaf buds eased January 31 ; leaf buds burst 

 February 4; first leaf unfolded February 5; all leaves unfolded Feb- 

 ruary 11 ; first leaf withered February 14; all leaves withered February 

 21; flower buds eased February 11. 



Ammonium oxalate (weak). — Storrs, Connecticut: No response. 



Potassium chloride (weak). — 



Storrs, Conn. 



Leaf buds eased 



Leaf buds burst 



First leaf unfolded . 

 All leaves withered 



February 1 . 

 February 3. 



Amherst, 

 Mass. 



February 5, 

 February 1 1 , 

 February 14, 



Lafayette, 

 Ind. 



February 7. 

 February 11. 

 February 14. 

 Februarv 21. 



Auburn, Ala. 



February 14. 

 February 15. 



