308 The Principles of Fruit-growing 



114) that had swollen to three or four times their 

 normal size. The pink color of the apricot buds was 

 distinctly visible, and the tips of the anthers could be 

 seen in the Japan plums by looking down squarely on 

 the buds. In this condition, the buds endured with no 



Fig. 114. Swollen buds that withstood 14° of frost: a, apricot; 

 bf peach; c, Japan plum; d, pear. 



injury the following temperatures, as taken by self- 

 registering thermometers hung in the trees (very , light 

 snow on the ground and a wind blowing all night) : 



Lowest temperature 



April 20, Aprioot, peach, Japan plum, pear 18° 



April 21, Aprioot, peach, pear 19° 



April 21, Japan plum 18° 



These buds endured 14° of frost without injury. On 

 the coldest morning, the buds were stiff from freezing, and 

 in some instances the backs and tips of some of the petals 



