170 



NINETEENTH REPORT. 



January 1. to blossoming; from blossominp: to ripening; from January 1, 

 to ripening; from blossoming one year to blossoming the next, and from 

 date of ripening to the date of blossoming the following spring. It will 

 be noted that there is a M'ide variation in each column. In the first 

 column, for example, which gives the temperature summations from 

 January 1 to the date of blossoming, the values range all the Avay from 

 183 to 362. Sandsten' endeavors to account for similar wide variations 

 noted in Wisconsin in studying the problem there, by stating that it is 



Table I. 



(Mean daily temperature summations in the life phases of the late 

 Crawford peach at Wauseon, Ohio). 



(Tlie figures in each column are the total mean temperature readings 

 after subtracting 42 degrees from each daily temperature. Only 

 temperatures above 42° were considered). 



