[61] PAGE 12, LINE 30. Page 12, line 35. _integtum_ appears to be a misprint for _integrum_, which is the reading of editions 1628 and 1633. [62] PAGE 13, LINE 4. Page 13, line 3. [Greek: mikrogê] _seu Terrella_. Although rounded loadstones had been used before Gilbert's time (see Peregrinus, p. 3 of Augsburg edition of 1558, or Baptista Porta, p. 194, of English edition of 1658), Gilbert's use of the spherical loadstone as a model of the globe of the earth is distinctive. The name _Terrella_ remained in the language. In _Pepys's Diary_ we read how on October 2, 1663, he "received a letter from Mr. Barlow with a terella." John Evelyn, in his _Diary_, July, 1655, mentions a "pretty terella with the circles and showing the magnetic deviations." A Terrella, 4½ inches in diameter, was presented in 1662 by King Charles I. to the Royal Society, and is still in its possession. It was examined in 1687 (see _Phil. Transactions_ for that year) by the Society to see whether the positions of its poles had changed. In Grew's _Catalogue and Description of the Rarities belonging to the Royal Society and preserved at Gresham College_ (London, 1681, p. 364) is mentioned a Terrella contrived by Sir Christopher Wren, with one half immersed in the centre of a plane horizontal table, so as to be like a Globe with the poles in the horizon, having thirty-two magnet needles mounted in the margin of the table to show "the different respect of the _Needle_ to the several _Points_ of the _Loadstone_." In Sir John Pettus's _Fleta Minor_, London, 1683, in the _Dictionary of Metallick Words_ at the end, under the word _Loadstone_ occurs the following passage: