Letters, the invention of them, the third step to society, [453].

Lies concerning the Invisible Cause, [41].

Life in creatures. The analogy between it and what is performed by engines that raise water by the help of fire, [380].

Lion, the, described, [427].
What designed for by nature in Paradise, [428].
Not made to be always in Paradise, ibid.
The product of hot countries, [430].

Linen, the invention of it, the result of deep thought, [97].

Literature, most parents that are able, bring up their sons to it, [509].

Lives, we are to judge of men from their lives, and not from their sentiments, [86].

Love to their species, is not more in men than in other creatures, [391].

Love has two significations, [79].
The difference between love and lust, [80].
No jealousy without love, [82].
Whether the end of it is the preservation of the species, [423].
Is little to be depended upon among the ill-bred vulgar, [481].

Lovers, Platonic may find out the origin of that passion, [81].