. A complete geography. And what are the differences between them? (pp. 3-4.) Describe a coal mine (p. 77). What are the uses of coal? Name the chief states in which petroleum and natural gas are found. Tell also how they have been produced during the past ages and what their uses are (p. 173). The ores producing iron are among the most important of the mineral products. Why so important? Where are the principal iron-producing regions ? () How is pig iron made?(pp. 79-81.) Why is not theLake Superior district a favor-able place for smelting iron ore?Fig. 250. Among the metals of great

---

. A complete geography. And what are the differences between them? (pp. 3-4.) Describe a coal mine (p. 77). What are the uses of coal? Name the chief states in which petroleum and natural gas are found. Tell also how they have been produced during the past ages and what their uses are (p. 173). The ores producing iron are among the most important of the mineral products. Why so important? Where are the principal iron-producing regions ? () How is pig iron made?(pp. 79-81.) Why is not theLake Superior district a favor-able place for smelting iron ore?Fig. 250. Among the metals of great Iron ore production, in dollars and tons, in the importance to man are the pre-flve leading iron ore-producing states. ^^^^^^ metals gold and Bllver. Describe three methods of gold mining (pp. 155-156.) Tell aboutgold and silver mining in California and Colorado (pp. 155-157).In what other parts of our country are the precious metals found? 0,08 63 Minnesota. *,OT7 Alabama yisspzt ^^ (/,// ^^?{.TrA. Fig. iron, copper, oil, and gas-producing regions.

---

Size: 1990px × 1255px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, booksubjectgeograp, bookyear1902