BED CEDAR CHESTS AGAINST MOTH DAMAGE. 11 



Table II. — Effect of four cedar chests upon 520 larvae ranging in age from 1 to 

 28 days, placed in chests Apr. SO, 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 

 5 



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 

 2 

 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 



11 



23 



1 





 1 



2 1 







7 

 2 

 8 

 9 

 9 

 9 

 8 

 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 





 3 

 1 



10 



7 

 9 







14 





 



10 

 10 



























11 



























10 













10 































1 



11 





 



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 















































I 



1 Very active and normal in appearance. 2 Larvae inactive and doubtfully alive. 



CONCLUSIONS. 



Chests made of heartwood 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 e bests from the time of manufacture until they 

 were 1 year old, and believe that ehests will retain indefinitely their 

 value :is protectors against moth ravages provided they are cared for 



