42 



CIRCULAR 3 6 9, U. S. DEPARTMENT OF AGRICULTURE 



For the preliminary fumigation of fur garments in small vaults 

 the same fumigants and the same dosages recommended for the large 

 storage sections can be used, although an exposure of 12 to 24 hours 

 is sufficient. 



EFFECT OF FUMIGATION ON FURS 



Fur garments appear to be in no way affected by the vapors of the 

 fumigants recommended, and dry storage has no deleterious effect 

 upon the furs. A few instances of change in color of furs stored in 

 i'umigable storage have been reported, but in no case has this been 

 clearly shown to be the result of fumigation. Thousands of dollars' 



Figure 36. — Interior of fur-storage vault with racks installed for holding garments in 

 best possible position for ready access and effective fumigation. 



worth of furs are being stored annually in fumigable storages 

 throughout the country, to the satisfaction of all concerned. 



RUGS AND TAPESTRIES 



Eugs and tapestries in storage can be protected by the same meth- 

 ods and equipment that are recommended for the storage of furs. 

 Many firms, however, prefer to use naphthalene flakes or paradi- 

 chlorobenzene crystals in place of liquid fumigants. On exposure to 

 air at ordinary room temperatures, both these solid fumigants give 

 off a heavy vapor, which gradually permeates the atmosphere of the 

 storage room. If a saturated atmosphere of either of these materials 

 is maintained in the storage room, adequate protection from insects 

 can be obtained (fig. 38). 



