Chapter

 1 Pref|      both are the same? If the three tricuspid valves placed
 2 Pref|      the vena cava, and if the three semilunar valves which are
 3 Pref| presumed to be made for many - three or four different - uses?
 4 II  |    which this is accomplished, three principal circumstances
 5 IV  |    seen to reply, after two or three contractions of the auricles,
 6 V   |      and carry blood; that the three semilunar valves situated
 7 VI  |       in the foetus, there are three semilunar valves, which
 8 VII |        are, as everyone knows, three sigmoid or semilunar valves
 9 IX  |      without sufficient cause, three points present themselves
10 IX  |        to be, say, two ounces, three ounces, or one ounce and
11 IX  |       either half an ounce, or three drachms, or one drachm of
12 IX  |        in some as many as two, three, and even four thousand.
13 IX  |  ounces, or one thousand times three drachms, or a like proportional
14 IX  |    thousand scruples, or about three pounds and a half, of blood
15 X   |     mammae-for a cow will give three, four, and even seven gallons
16 X   |        day, and a woman two or three pints whilst nursing a child
17 XIII|      done, I conceive that the three fundamental propositions
18 XIII|        the same as that of the three sigmoid valves which we
19 XVII|        of such strength, being three times thinner in its walls,