The 18th century was a wealth of knowledge, exploration and rapidly growing technology and expanding record-keeping made possible by advances in the printing press. In its determination to preserve the century of revolution, Gale initiated a revolution of its own: digitization of epic proportions to preserve these invaluable works in the largest archive of its kind. Now for the first time these high-quality digital copies of original 18th century manuscripts are available in print, making them highly accessible to libraries, undergraduate students, and independent scholars. Medical theory and practice of the 1700s developed rapidly, as is evidenced by the extensive collection, which includes descriptions of diseases, their conditions, and treatments. Books on science and technology, agriculture, military technology, natural philosophy, even cookbooks, are all contained here. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to insure edition identification: ++++ British Library T033835 With 'The index to both of the volumes' at the end. Later abridged as part of 'Experiments and observations on different kinds of air, and other branches of natural philosophy, ..' (1790). Last line of p. ix reads: "ments so truly ..;." Variant; pp. ix- x is a cancel and last line of p. ix reads: "more truly.." London: printed for J. Johnson, 1775. xliv,399, [21]p., plates; 8