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

by Mrs. Marcet; Thomas P. Jones

Changed "re-appearance" to "reappearance" on page 159: "reappearance of the sun."

Changed question 20 to "29" on page 174 to maintain proper sequence.

Changed "proportionably" to "proportionally" on page 198: "proportionally distinct."

Inserted comma after "Circle" on page 206 in the glossary entry for "Circle, Lesser."

Inserted period on page 207 at the end of the glossary entry for "Cylinder."

Changed "musisical" to "musical" on page 208 in the glossary entry for "Harmony."

Changed "perpendidicular" to "perpendicular" on page 211: "perpendicular to each other."

Changed "oppoite" to "opposite" on page 212: "the opposite direction."

Capitalised "Aries" on page 215: "the first degree of Aries."

Change "jr." to "Jr." in the advertisement for "A Pleasing Companion ...": "By Jesse Torrey, Jr."