



to the outer part of the hole, was five-eighths of an inch iu 

 diameter. An arrangement of funnel and tubiug, like the one 

 employed with number 5, was used for collecting the two lots 

 of sap. 



These trees were not tapped until numbers 8 and 11 had be. 

 gun to flow freely and the sap was not collected during the 

 whole time of bleeding, but the same length of time was always 

 employed for collecting the samples from the two depths in the 

 tree. 



The tables and diagrams show that the outer two inches 

 yielded a sap with a higher percentage of sugar (saccJiarose) 

 than was contained in that from the inner two inches. The re- 

 sults on sap-flow were contradictory. Number 5 bled more 

 freely from the outer two inches and number 12 from the inner. 

 Number 5 ceased bleeding on April 12, the date on which 8 and 

 11 had stopped. Number 12 also stopped on this date; but 

 after the wet weather had ended, there was a succession of 

 frosty nights and warm days and the inner section again began 

 to bleed but not so freely as before the rains, and did not cease 

 until the buds had burst and the leaves had begun to expand. 



With both trees, the parts producing the most sap, yielded 

 the most sugar. 



The flow of sap from number 12 varied about the same from 

 both inner and outer parts until the day on which the latter 

 ceased bleeding, when the former yielded its maximum quantity. 



