Popular Science Monthly/Volume 3/June 1873

Table of Contents
	PAGE
June 1873
The Constitution of Nebulae	129
The Hygiene of the Ear	139
Economy of Railway Locomotion	146
Instinct in Insects II	149
A Scientific Home Missionary	159
The Study of Sociology XI	172
Domestic Economy of Fuel I	193
Nature and Origin of the Drift-Deposits of the Northwest I	202
Some Observations on Niagara	210
State Geological Surveys	226
Natural Selection in Politics	230
Baron Liebig	232
Correspondence	235
Editor's Table	243
Literary Notices	247
Miscellany	249
Notes	255

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