The Campaign in Havana 257 



ing an incorrect position. The safety pan not only 

 holds the stand in position, but when half-filled 

 with water forms an effective protection in case the 

 alcohol lamp should begin to leak. Any lateral spurt- 

 ing of the alcohol is prevented by the sides of the 

 stand, and the excess alcohol would immediately be 

 extinguished by the water. 



It should be mentioned in passing that the edge 

 which is turned down on the fumigating pan is to 

 prevent the flame of the alcohol lamp passing over 

 the edge of the pan, and thus setting fire to the 

 camphor and carbolic acid. 



To summarize: , 



We have an apparatus consisting of four parts, a 

 fumigating pan, designed to evaporate campho- 

 phenique, formaldehyde, or other similar liquid, with 

 an especially moulded edge designed to prevent con- 

 tact of the liquid with the free flame, and to concen- 

 trate the fluid as it is evaporated in such a manner that 

 the last portion shall be distilled off. 



The stand is designed for steadiness, protection of 

 flame from drafts, and to give rigidity to the evapo- 

 rating (ftmiigating) pan. 



The safety pan is intended to support in their 

 proper relations both the stand with its pan and the 

 lamp which supplies the heat for evaporation, as well 

 as a safeguard against leakage of the lamp. 



The lamp found to give the best flame, everything 

 considered, is No. 15 metal spirit lamp manufactured 

 by Whitall, Tatum & Co. 



The whole apparatus is made as cheaply, durably, 

 and easy of transportation as possible. It is so con- 

 structed as to permit its use by unskilled labor, with 

 a minimum chance for damage both to itself and 



