Breast, of
which he had this notion, _viz_. That it was impossible for for him to
subsist without it, so much as the twinkling of an eye, tho' he could at
the same time conceive a possibility of subsisting without his other
parts, _viz_. his Hands, Feet, Ears, Nose, Eyes, or even his Head. And
upon this account, whenever he fought with any Wild Beast, he always
took particular care to guard his Breast; because of the Apprehension
which he had of that Part, which was contain'd in it.

Sec. 19. Having, by this way of reasoning, assur'd himself that the
disaffected Part lay in the Breast; he was resolv'd to make a search, in
order to find it out; that whatsoever the Impediment was, he might
remove it if possible; but then again, he was afraid on the other side,
lest his Undertaking should be worse than the Disease, and prove
prejudicial. He began to consider next, whether or no he had ever
remembred any Beasts, or other Animals, which he had seen in that
condition, recover again, and return to the same State which they were
in before: but he could call to Mind no such Instance; from whence he
concluded, that if she was let alone there would be no hopes at all, but
if he should be so fortunate as to find that Part, and find the
Impediment, there might be some hope. Upon this he resolv'd to open her
Breast and make enquiry; in order to which he provides himself with
sharp Flints, and Splinters of dry Cane almost like Knives, with which
he made an incision between the Ribs, and cutting through the Flesh,
came to the _Diaphragma_; which he finding very Tough and not easily
broken, assur'd himself, that such a Covering must needs belong to that
part which he lookt for, and that if he could once get through that, he
should find it. He met with some difficulty in his Work, because his
Instruments were none of the best, for he had none but such as were made
either of Flint or Cane.

Sec. 20. However, he sharpned 'em again and renewed his Attempt with all
the Skill he was Master of. At last he broke through, and the first part
he met with was the Lungs, which he at first sight mistook, for that
part which he search'd for, and turn'd 'em about this way and that way,
to see if he could find in them the cause of the Disease. He first
happen'd upon that Lobe which lay next the side [which he had open'd]
and when he perceiv'd that it did lean sideways, he was satisfy'd that
it was not the part he look'd for, because he was fully persw