Watches and Clocks. Common Jack. Automatons, § 45. Jack useful for physical Experiments, also to agitate Chemical Solutions, and Polish Mineral Specimens, 46.
Tanning, § 47. Impregnation of Timber with Tar, &c. Accident to Boat of a Whaling Ship, 48. Bleaching Linen, 49. Evaporation of Water of Brine Springs, 50, 51. Deepening of Rivers in America, 52. Ascending Rapids, 53. Position of Church Clocks, 54. Defective arrangement of the Post-Office Letter-Boxes. Proposition for the remedy, 55.
exerting forces too great for human power, and executing operations too delicate for human touch.
[Page 47—53.]
Difficulty of making a large Number of Men act simultaneously. Statue of Peter the Great. Egyptian Drawing, § 56. Communication by Signals; Clapper of the Capstan; Rod of Iron, 57. Rivets used when Red-hot, 58. Spinning Cotton. Steam-boats, 59, 60. Damping Paper for Bank Notes, 61. Separation of dense Particles by Fluid suspension, 62, 63. Application of Heat for removing the filaments of Cotton in Muslin and Patent Net, 64.
Pedometer. Counting Machines for Carriages. Steam-engine, § 65. Machine for measuring Calicoes, 66. Tell-tale, 67. Instrument to measure Liquor drawn from Casks, 68. To measure Liquor remaining in Casks, 69. Gas-meter, 70. Water-meter, 71, 72. Machine for registering the Average of
