TABLE NO. 3. 



The sashes remained on during the day, and were equally covered 

 at night with mats and shutters. 



CONCLUSION. 



The conclusions reached in the above exi)eriments are : — 

 1st. That the glass gives the greatest amount of protection from 



cold. 

 2d. That the heat accumulates most rapidly under glass when the 

 sun shines, and is best prevented from escaping from the heat- 

 ing material in the bed at night. 

 3d. That there is less danger of injury from sun-burning, and of a 

 too great accumulation of heat with the cloth than with glass, 

 and consequently less care is needed in using beds covered with 

 this material during the day. At night, however, more protec- 

 tion is needed to keep out the cold. 

 In our experience the cloth sash is especially valuable for beds of 

 recently transplanted plants, as the light is less intense and the evap- 

 oration less than with glass. 



The cloth frame may be made at a cost of about one-sixth that of 

 glass. 



The details of this cxpcrimeut were carried out by Mr. W. M. Sliepardsou, '88. 



PROTECTION OF PEACH BUDS FROM INJURY BY COLD. 



For the past five years no peach crop has been grown upon the 

 College farm. Last year a few buds survived the winter, and gave 

 us a few specimens of fruit. This spring a few buds only opened, 

 but perhaps rather more than last season. 



During the winter of 1887 the temperature reached 16 below 0° 

 once or twice. Last winter (1888) it ranged from 28° below 0° on 

 the low lands to 16° below 0° on higher lands at three separate 

 times. 



