294 THE SCHOOL GARDEN BOOK 



Lettuce 

 Growing Out-doors. 



1. As soon in spring as the ground can be worked, sow the 



lettuce seed sparsely in a shallow drill and cover with 

 about one-half inch of fine soil. 



2. As soon as the young plants appear, stir the surface of 



the soil between the rows and keep the rows free 

 from weeds. 



3. When the first true leaf is fairly well de\'eloped, thin the 



plants to six inches apart in the rows; or the plants 

 may be sown in cold-frame and transplanted. 



4. The only subsequent treatment needed will be frequent 



stirring of the soil and pulling of weeds. Gather the 

 heads as soon as they reach full size. 



Record of Growth. 



1. Seeds : shape, size, and color. Date of planting. Name 



of variety. 



2. Date of coming up. Appearance of seed-leaves. 



3. Date of thinning. How does the first true leaf differ 



from the seed-leaves? 



4. Date of gathering first heads. 



5. Date of gathering last heads. 



6. Comparison of varieties, and conclusions. 



Drawings. 



1. Seeds: natural size and magnified. 



2. Seedlings with two seed-leaves. 



3. The first true leaf. 



4. Fully developed head. 



