104 LABORATORY LESSONS IN GENERAL SCIENCE 



4. For what chief reason other than keeping down weeds 

 ought there to be frequent stirring of the surface layer of 

 soil throughout the growing season ? Aside from the untidy 

 appearance they give, what harm is there in allowing weeds 

 to grow ? What course, if followed consistently, will destroy 

 the weeds of a garden during the growing season with the 

 least outlay of time and strength? Under what condition 

 of the soil is it more harmful than beneficial (ben-e-fish'al) 



to work it ? Why is it well 

 to plow (or spade) some 

 gardens late in the fall ? 



5. About how long after 

 planting may one expect 

 ready for use (a) radish; 

 (6) green peas; (c) string 

 beans ? How may a supply 

 of radish and of beans be 

 secured at intervals (or in 

 succession) ? What differ- 

 ent course may be followed 

 with peas and with corn? 



6. On one side of your 

 sheet of paper represent a 

 garden plot 30 feet X 40 

 feet, using the scale \ inch 



= one foot. Represent on it (a) by the use of lines of 

 suitable length and at correct distances apart, garden stuff 

 sowed (or set) in rows ; (6) by the use of circles at correct 

 distances apart that . which is planted (or set) in hills. 

 By the use of figures on these lines, and within these cir- 



FIG. 47. String beans. Ready for 

 household use, or for a lesson in 

 botany. 



