— for the evolution of prussic acid, R. Hare, xxix, 244.f

— for evolving silicon from fluo-silicic acid, R. Hare, xxiv, 247.f

— for decomposition and recomposition of water, xxxviii, 336.f

— galvano-ignition, xxvi, 352f; xxxii, 282.

— for solidifying carbonic acid, J. Johnston, xxxviii, 297f; xlii, 203.

— for illustrating absorption of heat, A. D. Bache, xxviii, 320.f

—, hydrogen gas, vii, 392.

— — self-regulating reservoir, R. Hare, xi, 140.f

— for experiments on inflection and interference of light and caustics, E. S. Snell, xlix, 24,f 26.f

— for illustrating waves, E. S. Snell, xlix, 20.f