87 



of the sun is not ver}'^ strong in the month 

 of February ; in others, however, it will 

 be found too powerful an agent in the ge- 

 nerating of scum. The above rule was 

 given to be observed, when frosty nights 

 prevail, and in such weather, the days are 

 generally clear, and the sun has consider- 

 able effect. It appears from other parts 

 of his book, that Mr. B. has not so great a 

 dread of scum, as is entertained by other 

 persons, or he w ould not have allowed the 

 water to remain on a meadow " a fort- 

 " night or more" towards the end of the 

 month of February'. 



" Frosts of one night, often fix the 

 ** hatches in the wears so fast, that they 

 " cannot be moved till the frost brealvs." 



This obstruction, to the direction above 



given, namely, " taking the A\ater off in 



■M 2 " the 



