14 
BULLETIN 527, U. S. DEPARTMENT OF AGRICULTURE. 
The material required is one piece J by 10 inches by 2 feet, one piece 
| by 12 inches by 4 foot, about 32 feet broom wire or cord, and a few 
6-penny and 8-penny finishing nails. The stock, with finished dimen- 
sions and use of each piece of lumber, are as follows: 
Use. 
Number 
of pieces. 
Finished dimen- 
sions. 
Sides 
2 
2 
2 
Inches. 
J by 2 by 20-2. 
^ by 2 by m. 
h by 9| by 2li. 
/^ 
^ 
A 
ID 
n|*k- 
Rip the J by 10 
inch by 2 foot board, 
making four strips, 
each 2\ inches wide. 
Cut to lengths of 
sides and ends and 
plane to dimensions 
given above. Saw 
from the f by 12 inch 
by 4 foot board two 
pieces, each 21 J 
inches long and plane 
to dimensions. Cut 
notches in ends of end 
pieces as shown in the 
drawing. 
To assemble, nail 
the ends to sides. 
Use 8-penny nails, 
putting three nails 
into each cover, two 
through the end 
pieces into the side 
pieces, and one 
through the side piece 
into the end piece. 
This method of nailing 
makes a good strong 
corner. Be careful not 
to split the wood 
when nailing. Next 
nail the bottom boards in place, using 6-penny nails. Cover the 
crack between the two bottom boards with a narrow strip of wood 
to prevent the sand or soil from sifting through the crack. 
1 / 
^ 
.? 
J5" 
r-(^ 
7 
r-^- 
.9 
SO 
" 
> 
, . 
- 
A 
B 
< : 
O 
f 
F 
{ 
H 
> 
|, 
SO" ,- 
J 
1*4 
\ 
J 
3/A 
-i" 
* 
-te 
Fig. 22.— Seed germinalor. 
