LIST OF EXPERIMENTS XV 



63. Expt. 69. Weighing by Elasticity . ., 165 



64. Expt. 70. The Pendulum ..... 168 



65. Expt. 71. The Use of the Lever . f . .' 169 



66. Expt. 72. The Use of the Inclined Plane . 170 

 68. Expt. 73. Magnetic Materials . . . 175 

 68. Expt. 74. To Draw a Magnetic Field . ., 176 

 68 Expt. 75. Blue Prints of Magnetic Fields . 177 

 68. Expt. 76. Attraction and Repulsion . . . 178 

 74. Expt. 77. Waterproofing . * . . 186 

 77. Expt. 78. Soap Making . . . . 189 

 79. Expt. 79. Making and Distilling Alcohol . 191 



