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Plate 1. Types of Stoves Used for Naphthalene Fumigation. 

 Upper Left: Ordinary kerosene lamp with sheet iron cone and pan. 

 Upper Right: Two-wick stove and chimney designed and sold for Naphthalene fumi- 

 gation. 

 Lower Left: Union oil stove manufactured for household use but suitable for 

 naphthalene fumigation. 

 Lower Right: Electric hot plate and frame to hold sheet iron pan used in experimental 



fumigation chamber. 



