i8 



THE ART OF PROJECTING. 



by George Wale & Co. at the Stevens Institute, Hobo- 

 ken, N. J., and called the Experimenter's Lantern, be- 

 cause of its adaptability to many kinds of experimental 

 work, as well as to the exhibition of photographic trans- 

 parencies. 



Mr. L. J. Marcy, of Philadelphia, has, in an ingen- 

 ious manner, made a lantern jet which can be used 

 with alcohol, common gas, or hydrogen, to produce the 

 lime light. He calls it the triple jet. The engrav- 

 ing (Fig. 9) shows the lantern in section. L being 

 the disk of lime, the gases ignited at w. This lantern 

 is compact, light, and has a very 

 convenient arrangement for hold- 

 ing slides, tanks, and so forth. 



The oil lanterns have various 

 names given to them by different 

 makers, such as magic lanterns, 

 lamposcopes, sciopticons, and so 



Fig. 1O. 



on. Fig. 10 represents the new form, the Sciopticon, 

 which for simplicity, compactness, and brilliancy of 

 illumination, surpasses every other oil lantern in the 



