CREDIT FOR HOME PRACTICE IN AGRICULTURE. 1% 
without some encouragement. [‘urthermore, the problems which 
arise during the vacation weeks are often critical and the pupil needs 
help. 
Among the different methods of providing this supervision a few 
are named. In each case the supervisor must be capable and willing. 
Perfunctory supervision soon fails to accomplish the desired end. 
1, High-school instructor of agriculture employed during the 
summer months to supervise all projects. 
2. A local committee cooperating with the county agent, the latter 
to advise regularly and visit projects at least once during the summer. 
3. A committee of the ‘‘parent-teachers association.’ With 
changing teachers this is valuable. 
4, The local club leader cooperating with the extension service of 
the State agricultural college, with or without a local committee. 
5. Local experts in plant or animal production might well be paid 
for a few such rounds of visits. 
6. Resident teachers sometimes qualify as supervisors. 
FARM MANAGEMENT BASIS OF SCHOOL CREDIT. 
If the exact amount of labor for growing each crop and the ratio 
between projects could be definitely stated, this problem would be 
greatly simplified. It happens, however, that variations in the labor 
required for any project due to factors not entirely:within control 
would not allow the use of averages in all cases. A study of the 
tables appended to this study (see pp. 21 to 27) will show that 
the labor on any given project varies much in different localities and 
under different conditions. 
In Table 1, page 21, are shown the number of man-hours and 
horse-hours of labor in certain farm activities in a few States. It is 
evident that the averages often fail to apply to any one State. These 
figures, which are taken from unfinished studies in the Office of Farm 
Management, are to be weighed by further records but are sufficient 
for all purposes of this bulletin. 
The succeeding tables show the variations in labor requirements 
and tend to prove that it is difficult to apply any average figures 
even for one State. They also suggest some of the factors that may 
vary the labor requirements of any project in a given community. 
The available studies are more detailed for some crops than for others 
and there is less information which will apply to animal projects. 
The following method is suggested for any district in which there 
are no records to use as a basis for credit. From the figures quoted 
in the tables select those which apparently apply most nearly to the 
given locality. Determime upon a range of variation which wil! be 
allowed in giving the credit and ask the pupils to keep accurate rec- 
ords for the labor on their projects. It would be desirable also for 
