RED CEDAR CHESTS AGAINST MOTH DAMAGE. 
11 
Table II. — Effect of four cedar chests upon 520 larvcs ranging in age from 1 to 
28 days, placed in chests Apr. 30, 1921. 
Chest 
No. 
Date and result of examinations. 
Age on entering chest. 
May 11. 
May 21. 
May 31. 
June 6. 
July 7. 
Alive. 
Dead. 
Alive. 
Dead. 
Alive. 
Dead. 
Alive. 
Dead. 
Alive. 
Dead. 
Days. 
28 
1 
2 
3 
4 
1 
2 
3 
4 
1 
2 
3 
4 
1 
2 
3 
4 
1 
2 
3 
4 
1 
2 
3 
4 
1 
2 
3 
4 
1 
2 
3 
4 
1 
2 
3 
4 
1 
2 
3 
4 
1 
2 
3 
4 
1 
2 
3 
4 
1 
2 
3 
4 
5 
3 
3 
6 
6 
8 
' 8 
8 
6 
6 
3 
5 
7 
5 
9 
6 
8 
4 
6 
6 
3 
8 
5 
8 
2 
4 
4 
5 
5 
6 
6 
3 
1 
6 
6 
6 
3 
6 
2 
4 
3 
6 
5 
3 
3 
6 
7 
4 
4 
6 
4 
7 
5 
7 
7 
4 
4 
2 
2 
2 
4 
4 
7 
5 
3 
5 
1 
4 
2 
6 
4 
4 
7 
2 
5 
2 
8 
6 
6 
5 
5 
4 
4 
7 
9 
4 
4 
4 
7 
4 
8 
6 
7 
4 
5 
7 
7 
4 
3 
6 
6 
4 
6 
3 
2 
1 
2 
6 
5 
8 
9 
8 
4 
a 
1 


3 
1 

1 
3 
2 





1 


9 
10 
10 
7 
9 
10 
9 
7 
8 
10 
10 
10 
10 
10 
9 
10 
10 
1 
9 

10 
21 
3 

7 
10 

10 
3 
8 
2 
1 
1 
1 
7 
2 
8 
9 
9 
9 

3 
1 
10 
7 
9 
14 


10 
10 
11 
2 8 
1 
1 
2 
2 

3 
2 
1 
3 
1 
5 

1 
2 
5 
1 
1 
2 

1 
2 
4 
3 
1 
4 



2 
23 

1 i 
2 3 
2 1 

9 
9 
8 
8 
10 
7 
8 
9 
7 
9 
5 
10 
9 
8 
5 
9 
9 
8 
10 
9 
8 
6 
7 
9 
6 
10 
10 
10 
8 
7 
10 
9 
9 
7 
9 
10 
9 
9 
10 
i... 

10 
10 


1 


10 
10 
9 
9 
10 
10 
9 


10 
10 
8 




1 

10 
10 
10 
10 
9 
10 
7 
1 
9 

10 
5 
1 





9 
10 
10 
10 
10 
10 
1 
9 

10 
4 
3 


10 
10 
2 


1 
1 



10 
10 
9 
9 
10 
10 
10 


10 
10 
1 
1 Very active and normal in appearance. 2 Larvae inactive and doubtfully alive. 
CONCLUSIONS. 
Chests made of heartwoocl of red cedar (Juniperus virginiana) , 
such as are found on the market, if in good condition as regards 
tightness, are effective in protecting fabrics from clothes-moth 
attack if certain precautions are taken to beat, brush, and, when 
possible, sun articles before placing them in the chest. The writers 
experimented with chests from the time of manufacture until they 
were 1 year old, and believe that chests will retain indefinitely their 
value as protectors against moth ravages provided they are cared for 
