_Aristotle_ referred to, vii, 27 on the pulse, 30 on the chick, 34 quoted in support of pulsation of heart of embryo, 46 circular motion of rain suggested by, compared to that of the blood, 56 on the heart, 93, 97, 105, 166 his error regarding the mitral valve, 101 on the study of the lower animals, 137 on trusting to the senses, 160 _Arteriotomy_ experiments of, 14, 28, 29, 129, 163 outflow of blood in, 29 _Arteries_ ancient views regarding the, ix contain blood only, 12 contain same blood as the veins, 12 Galen’s experiment on, 12 filled like bladders, not like bellows, 13 dilation of, due to impulse of blood, 14 diastole of, corresponds to systole of heart, 29 called veins, by Galen, 30, and the ancients, 57 why empty after death, 62, 140 coronary, supply the heart itself, 88 reason for greater thickness of coats of, 106 nearer to heart, more they differ from veins, 106 contained only aërial spirits, according to Erasistratus, 140 _Artery_ ligature of an, of a snake, 66 experiment of dividing an, 129, 146 experiment on an exposed uncut, 136 case of ossification of portion of an, 137 _Arundel, Earl of_ Harvey accompanied the, on an embassy to the Emperor, xxii _Aselli_ discovered the lacteals, 117, 186 lacteal vessels of, referred to by Harvey, 197 B _Baer, Von_ Harvey, a precursor of, xxi _Bandages_ on the arm to show flow of blood in the veins, 81 _et seq._ _Bauhin, Caspar_ his observations on the heart, 31 _Bibliography_ of Harvey’s works, xxiv _Bird_ observations on the beat of the heart of a, 33 observations on the heart of the chick, 34, 36 _Blood_ its course from veins to arteries, 42 in the lower animals, 43 in the fœtus, 44 its passage through the lungs, 48 quantity of, passing through the heart, 55 circular motion of the, 56 demonstrated from impossibility of whole amount of, being derived from the ingesta, 58 amount ejected from ventricle at each beat, 59 enters a limb by arteries, leaves it by veins, 67 circulation of, proved by experiments with ligatures, 67, 68 quantity of, passing through bloodvessels supports circulation, 76 circulation of, supported by valves in the veins, 78 manner of escape of, in surgical operations, 107 the whole of the, circulates, 114 is cooled in passing through the lungs, 122 force with which it flows from an artery, 136 is of same nature in arteries and veins, 138, 143 reasons why a different view has been held, 139, 140 velocity of, varies in different parts, and at different times, 156 gives heat to the heart, 167 passage of, from arteries to veins, xvi, 168 C _Cæsalpinus, Andreas_ claimed in Italy as the discoverer of the Circulation, xi this claim criticised, xii