from the Bride-bed of the Soul, or the Splene, your _Author_ doth not declare. As for the young Maids in _Chios_, I must confess, it is a very strange example; but I think there have been as many Men that have killed themselves, as Women, if not more: However, I hope, by the Grace of God, the young Maids in this Kingdom are better advised; for if they should do the like, it would be a sad fate for all young Men. To conclude, _Madam_, all these rehearsed opinions of your _Author_, concerning the Grounds or Principles of Natural Philosophy, if you desire my Unfeigned Judgment, I can say no more, but that they shew more Fancy, then Reason and Truth, and so do many others; and, perhaps, my opinions may be as far from Truth as his, although their Ground is Sense and Reason; for there is no single Creature in Nature, that is able to know the perfectest Truth: but some opinions, to humane sense and reason, may have more probability then others, and every one thinks his to be most probable, according to his own fancy and imagination, and so I think of mine; nevertheless, I leave them to the censure of those, that are endued with solid judgment and reason, and know how to discern betwixt things of fancy and reason, and amongst the rest, I submit them to the censure of your _Ladiship_, whose solid and wise Judgment is the rule of all the actions of, Madam, _Your Faithful Friend_ _and Servant._ [1] _In his_ ch. _called_ The Fiction of Elementary Complexions and Mixtures. [2] _In the_ ch. of the Birth and Original of Forms. _In the_ ch. Of the Ideas of Diseases. _See his_ ch. _called_ The Seat of Diseases in the Soul is confirmed. Ch. of Archeal Diseases. Ch. _called_ The Subject of inhering of Diseases is in the point of Life, &c. [3] _In the_ ch. Of the Gas of the Water. [4] _In the_ ch. of the Fiction of Elementary Complexions and Mixtures. [5] _In the_ ch. Of the Blas of Meteors. [6] _In the_ ch. Of the unknown action of Government. [7] _In the_ ch. Of the Blas of Man. [8] Of the Causes and beginnings of Natural things. [9] Of the Ideas of Diseases. [10] Of the Magnetick cure of Wounds. [11] Of things Conceived, or Conceptions. III. _MADAM,_