Notes

With advertisements for works by the author and a 4-page advertisement for works published by J. Johnson. - Vol. 1 subtitled: Of mechanics, Vol.2: Of astronmy, Vol. 3: Of hydrostatics, Vol. 4: Of pneumatics, Vol. 5: Of optics and magnetism, Vol. 6: Of electricity and galvanism. - Vol. 7 titlepage reads: A companion to the scientific dialogues; or, the tutor's assistant and pupil's manual in natural and exprimental philosophy. Containing a complete set of questions and other exercises, for the examination of pupils, in the six volumes of "Scientific dialogues" and forming a seventh volume to that work. - Colophon varies for the seventh volume