w. w. RAWSON'S EXPERIENCE. 



103 



heading, and coolest for the three weeks after setting 

 out and just before heading, but not below 35. As 

 soon as a crop is harvested, the house is fumigated, dug 

 over, and a new crop set out. Not 24 hours is lost in 



34. Boston Market lettuce. 



changing crops. In renewing the beds use light, loamy 

 soil ; rotted sod is good, if left in a heap for a year to 

 decompose fully. With regard to mildew of lettuce, if 

 seen soon enough it can be gotten rid of by keeping the 



