Page 59. 1. 4. read-apparatus, the difference between the lengths of two pen-
dulums fwinging equal arches of circles of different diameters, &c.

63. 1. 6. from bottom, and p. 64. 1. 6. for de Bois, r. des Bois.

64. 1. 9. from bottom, dele (l'Arve.')

76. dele from 1. 16. but the author,' &c. to line 22. barbarity.'-See