Note 158 The Institutes of Caius, (l. ii. tit. ix. x. p. 144 - 214,) of Justinian, (l. iii. tit. xiv. - xxx. l. iv. tit. i. - vi.,) and of Theophilus, (p. 616 - 837,) distinguish four sorts of obligations - aut re, aut verbis, aut literis, aut consensû: but I confess myself partial to my own division.

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The History Of The Decline And Fall Of The Roman Empire —Fall In The East —Chapter 44