Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained

by Mrs. Marcet; Thomas P. Jones

The original spelling of "pourtray" was preserved.

Both Roman and Arabic numerals are used to number the plates; the text was left as is.

Preserved the non-standard order in the index, where U comes after V.

Removed extra comma after "which" on page v: "about which the parts."

Changed "Sideral" to "Siderial" on page vi: "Solar, Siderial, and Equal."

Added comma after "Mrs. B." on page 9: "your assistance, my Dear Mrs. B., in a charge."

Changed "errroneous" to "erroneous" on page 10: "an erroneous conception."

Added comma after "Mrs. B." twice on page 23: "Yet surely, Mrs. B., there;" and "But, Mrs. B., if attraction."

Added commas before and after "Mrs. B." on page 25: "Pray, Mrs. B., do."

Changed "plate 6. fig. 5" to "plate 5. fig. 5" on page 65 in the body of the text and in the associated question, to designate the correct figure.