Key To Plate I 



Fig. 3. — Clay soil. This sample of clay was taken from 

 a well tilled garden. Rough as it may seem, it is in 

 fair condition for planting. 



Fig. 4. — Garden loam. Rich in humus and plant food. 

 The best soil for general gardening. 



Fig. 5. — Sand. Note the lack of any humus. 



Fig. 6. — Muck soil. Note the blackness of the soil and 

 the vegetable matter not yet decayed. 



