MICRO-BURNERS 
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deposits, etc., examined with low powers as well as if the material 
were transferred to a glass object slide. 
Gas Lamps for Microchemical Work. — The form of “ micro¬ 
chemical burner ” commonly referred to in the older manuals 
on the microscope and microscopic methods is shown in Fig. 
86. This burner answers admirably for all purposes involving 
Analysis. (Xh) 
only moderate heating of very small amounts of material. Since, 
however, microchemical methods often require a preliminary 
handling of several grams or cubic centimeters of substance, 
the burner shown in Fig. 87 will be found to afford a wider range 
of usefulness. It also occupies less space upon the work table. 
It consists of an ordinary Bunsen burner provided with a side 
tube for a “ reserve ” or “ pilot ” flame. In the form illustrated. 
