Some considerations touching the usefulness of experimental natural philosophy
Subtitle: Propos'd in a familiar discourse to a friend, by way of invitation to the study of it
By: by the Honourable Robert Boyle...
Edition: A 2d ed. <since the 1st published June 1663.>.
Publisher: Printed by H. Hall for R. Davis
Published: 1664
Place of publication: Oxford
Language: eng
Subjects: Science; Early works to 1800
Notes: Vol. only of the 2d edition.

The six essays composing the "second tome" are separately paged: the last one has caption "Essay X".  Sig. one leaf, between p. 28 and 29 of the fourth essay (p. 29-31 being an "Appendix") is the table of "Contents" of the six essays.
Table of contents: title: The first part.  Of its usefulness in reference to the mind of man. 1664.; title: The second part; the first section (with half-title only) Of its usefulness to physik [1664]; title: The second tome, later section of the second part.  Of its usefulness to the empire of man over inferior creatures. 1671.