Still Small 320×280 Medium 640×559 Large 1024×895 Download Tiff Original 2400×2098 | (1.3 MB) Description "A "still;" and, for condensing the vapor, vats are constructed, holding serpentine pipes or "worms," which present a greater condensing surface than if the pipe has passed directly through the vat." —Wells, 1857 Keywords pipe, still, vapor, vat, worm Galleries Chemistry Apparatus Source: David A. Wells The Science of Common Things; A Familiar Explanation of the First Principles of Physical Science196 Courtesy the private collection of Roy Winkelman
