52 transactions of the american institute. 



Fish's Patent Lamp Heating Apparatus, 

 For the economical ajyplication of the burning of kerosene oil for the 

 purpose rf heating and cooking, for which the silver medal of the 

 Institute was awarded. 



Fig. 2. Fig. 3. 



Ever since the discovery of tlie inexhaustible oil wells in Penn- 

 sylvania, petroleum has been produced in quantities so large as to 



