C0NTEKT8. XT9 



Chap. Pa«« 



68. What part of the earth is inhabited 100 



69. That the earth is in the middle of the world 102 



70. Of the obhquity of the zones ib. 



71. Of the inequaUty of chmates ib. 



72. In wh»t places ecUpses are invisible, and why this is the caa6 104 



73. What regulates the daylight on the earth 106 



74. Remarks on dials, as connected with tliis subject 106 



75. When and where there are no shadows *107 



76. Where this takes place twice in the year and where the sha- 



dows fall in opposite directions 108 



77. Where the days are the longest and where the shortest ib. 



78. Of the first dial 109 



79. Of the mode in which the days are computed 110 



80. Of the diflerence of nations as depending on the nature of the 



world ib. 



81. Of earthquakes Ill 



82. Of clefts of the earth 112 



83. Signs of an approaching earthquake 114 



84. Preservatives against future earthquakes ib. 



85. Prodigies of the earth which have occurred once only 115 



86. Wonderful circumstances attonduig earthquakes 116 



87. In what places the sea has receded ib. 



88. The mode in which islands rise up 117 



89. What islands have been formed, and at what periods ... ... 118 



90. Lands which have been separated by the sea 119 



91. Islands which have been united to the main land ib. 



92. Lands which have been totally changed into seas ib. 



93. Lands which have been swallowed up 120 



94. Cities which have been absorbed by the sea ib. 



95. Of vents in the earth 121 



96. Of certain lauds wliich are always shaking, and of floating 



islands 122 



97. Places in which it never rains 123 



98. The wonders of various countries collected together ib. 



99. Concerning the cause of the flowing and ebbing of the sea ... 124 



100. Where the tides rise and fall in an unusual manner 127 



101. Wonders of the sea 128 



102. The power of the moon over the land and the sea ib. 



103. The power of the sun 129 



104. Why the sea is salt ib. 



105. Where the sea is the deepest 130 



106. The wonders of fountains and rivers 131 



107. The wonders of fire and water imited 138 



108. OfMaltha 138 



109. Of naphtha 139 



110. Places which are always burning ib. 



111. Wonders of fire alone 141 



112. The dimensions of the earth 143 



113. The harmpnical proportion of the universe 147 



