CONTEOTS, 
XXV 
Chap. ' Page 
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 ih, 
71. Of the inequahty of chmates ib, 
72. In what places echpses are invisible, and why this is the case 104 
73. What regulates the dayhght on the earth 105 
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 du^ections 108 
77. Where the days are the longest and where the shortest ih, 
78. Of the first dial : 109 
79. Of the mode in which the days are computed 110 
80. Of the difference of nations as depending on the nature of the 
world ih, 
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 chcumstances attending earthquakes 116 
87. In what places the sea has receded ih. 
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 ih, 
92. Lands which have been totally changed into seas ih, 
93. Lands which have been swallowed up 120 
94. Cities which have been absorbed by the sea ih, 
95. Of vents in the earth 121 
96. Of certain lands which are always shaking, and of floating 
islands 122 
97. Places in which it never rains 123 
98. The wonders of various countries collected together ih, 
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 naoon over the land and the sea ib. 
103. The power of the sun 129 
104. Why the sea is salt ... ih, 
105. Where the sea is the deepest 130 
106. The wonders of fountains and rivers 131 
107. The wonders of fire and water united 138 
108. Of Maltha 138 
109. Of naphtha 139 
110. Places which are always burning , ... ih, 
111. Wonders of fire alone 141 
112. The dimensions of the earth 143 
113. The harmonicai proportion of the universe ... ... 147 
