Brownlee Small 159×320 Medium 319×640 Large 510×1024 Download Tiff Original 1196×2400 | (351.1 KB) Description This apparatus allows chemists to mix chemicals and observe the gases that come out of the mixtures. Keywords Brownlee, Chemistry Apparatus Galleries Chemistry Apparatus Source: Alexander Smith, Intermediate Text Book of Chemistry (New York: The Century Co, 1920) 140