Sketch of Prof. John Le Conte ; [and] Sensitive flames and sound-shadows (1889)
Stevens, W. Le Conte (Walter Le Conte), 1847-1927 · New York : D. Appleton · leaf 25
nto the end of a metal tube and connected by means of India-rubber tubing to a cylinder of compressed illuminating gas. Inconnection with this, also, there should be a water manometergauge for regulating the pressure of the outflowing gas. If thepin-hole is very smoothly cylindrical, the flame… … Fis. 3.—Sensitive Batwing Flames. SENSITIVE FLAMES AND SOUND-SHADOWS. 19 cated by the water-gauge, the flame flares, becoming much shorterand broader, like a little Indian club (Fig. 4, y), and producing alow roaring sound, due to the escape of unburned gas. Let thepressure now be diminished until…
LeConte, John, 1818-1891 · Sound-waves
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