Ideal Home Life - online book

A valuable and well-organized system for home education(homeschooling) 3 to 12 years.

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clock. Some say it was invented by a Chinese long before the time of Christ.
It was made of four copper jars on a flight of steps, the top of each reaching to the bottom of the next. Small troughs
connected them all. The largest jar held ninety-three pints of water. A piece of wood was set in the lower jar and rose as it filled with water. It was set at five in the morning, and five in the afternoon. When the half day was up the water from the lower jar was put back into the upper one.
The clocks given in Figures A, B, C, D, E, F are simple to
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