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Lesson 01 Porous Bodies
Lesson 02 Sponge—and its Uses
Lesson 03 The Sponge
Lesson 04 Filters
Lesson 05 The Poor Man’s Filter
Lesson 06 Soluble
Lesson 07 Soluble Substances
Lesson 08 Starch
Lesson 09 What Starch is
Lesson 10 Starch for Food
Lesson 11 Soluble and Insoluble
Lesson 12 Soap
Lesson 13 Corn
Lesson 14 Kinds of Corn
Lesson 15 Adhesive
Lesson 16 Cements
Lesson 17 Wheat and Rice
Lesson 18 Fusible
Lesson 19 Maize
Lesson 20 About Metals
Lesson 21 Some More about Metals
Lesson 22 Iron Ore
Lesson 23 Iron
Lesson 24 The Cow
Lesson 25 Cast-Iron
Lesson 26 Milk, Butter, Cheese
Lesson 27 Wrought Iron
Lesson 28 The Horse
Lesson 29 Steel
Lesson 30 The Rabbit
Lesson 31 Copper
Lesson 32 The Rabbit at Home
Lesson 33 Lead
Lesson 34 The Monkey
Lesson 35 Tin
Lesson 36 Three Classes of Monkeys
Lesson 37 Zinc
Lesson 38 The Mole
Lesson 39 Silver
Lesson 40 Gold
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