69. the line. The Equator.
70. palmy. Made from palms.
71. tepid. Lukewarm.
75-80. This idea is elaborated and illustrated in the remainder of the poem.
82. No matter where one lives, Nature gives returns to those who labour.
84. Idra. Probably Lake Idro in Switzerland.
Arno. A river in Italy.
90. either. Here means any one of the things mentioned.
93. prone. Disposed, inclined, favourable to.
98. peculiar pain. Pain which follows this particular good.