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141
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142
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143
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144
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145
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146
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147
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148
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149
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150
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151Subjects: “...Petroleum Illinois....”
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152
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153
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154by Trowbridge, Arthur C. (Arthur Carleton), 1885-Subjects: “...Geology Illinois....”
Published 1916
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155
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156
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157
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158Subjects: “...Water-supply Illinois....”
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159
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160