"in consequence of which, he mustered up the ideas of his first passion, and set them in opposition to those of this new and dangerous attachment; by which means, he kept the balance <i>in equilibrio,</i> and his bosom tolerably quiet."
The Adventures of Peregrine Pickle
33 entries in ESTC (1751, 1758, 1763, 1765, 1769, 1773, 1775, 1776, 1778, 1779, 1781, 1784, 1785, 1786, 1787, 1788, 1791, 1793, 1794, 1798, 1799, 1800).<br>
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Smollett, Tobias. <u>The Adventures of Peregrine Pickle. In which are included, Memoirs of a Lady of Quality.</u>, 4 vols. (London: Printed for the author, 1751). &lt;<a href="http://estc.bl.uk/T55344">Link to ESTC</a>&gt;