An essay on electricity : explaining the principles of that useful science, and describing the instruments, contrived either to illustrate the theory, or render the practice entertaining : illustrated with six plates. To which is added, a letter to the author, from Mr. John Birch, surgeon, on the subject of medical electricity / by the late George Adams.

George Adams Jr.

Date:: 1799

Credit: An essay on electricity : explaining the principles of that useful science, and describing the instruments, contrived either to illustrate the theory, or render the practice entertaining : illustrated with six plates. To which is added, a letter to the author, from Mr. John Birch, surgeon, on the subject of medical electricity / by the late George Adams. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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$Ill b' [9] EKhriustlng and condensing syringes, from lOi. ()d. to Exhausting syringes, with sets of cupping glasses, breast glasses, and scarificator, complete 4 14 6 Air fountains of copper, with various jets, from 3/. loi'. to 7 7^ Electrical Machines, with conductors and jars, from 2/. 125. OW. to 10 10 0 New and much improved ditto, from 3/. J3;. Qd. to 42 0 0 Electrical machines and complete apparatus for medical pur- poses, packed in boxes, the cylinder from seven to ten inches diameter, from 6/. 6k. to 12 12 0 An electrical machine \yith apparatus for philosophical ex- periments and medical uses, packed in a box, the cylinder about eight inches diameter 8 18 6’ udpparatus for Electrical Machines as follow: Electrical batferies of combined jars, from 2/. \2s. Gd. to . . 10 10 0 An universal discharger, with a press 1 8 0 A quadrant electrometer with divided arch 0 7 '6 • Jointed dischargers with glass handles 0 10 6 2, * Plain ditto, ditto 0 5 6 An useful and illustrative app'aratus, compounded of the lu- minous conductor, exhausted flask, two jars, exhausting syringe, insulated stand, and wires with balls, &c. complete 3 0 0 Jmminous conductors, from 125. to 1 5 0 Exhausted flasks, called Aurora Borealis ■ 0 6 6 • A thunder house, demonstrating the use of conductors .... 0 6 O A powder house for the same purpose ' 0 l6 O • An obelisk or pyramid for ditto 0 10 6 • A set of plain bells, three to a set 0 7 6' A new set of musical ditto, containing the gamut 1 10 O • A magic picture for giving,shocks ’ 0 7 G An electrical cannon, to be discharged by inflammable air , . 0 l6 O Brass pistols for ditto 0 7 ^ Spiral tubes to Illuminate by the spark, from 45. Qd. to ... . 0 10 6 Luminous names, or words, from IO5. Qd. to l 11 6 Spotted iars, from 65. to 0 10 6 A double jar for explaining the Franklinian theory 0 15 0 • Copper plates and stands for dancing images 0 9 0 ■ An electrical tin fire house 0 10 6 « An electrical shooter and mark 0 5 O A mahogany stand for eggs 0 4 6 • A ^inall head with hair •. O 7 Q • An artificial spider ’ O 1 6 . An electricabswan •. . .- O 2 O . A^ electrical star ' O 1 6 Balls of wood, bone. Sec. each from 6V/. to . . 0 2 6 A curious collection of working models, to be set in motion by the el&ctrical fluid, consisting of a corn mill and a three- barrelled water pump, worked by one crank only 5 anorrer)'-, shewing the.diurnal motion of the earth, age and phases of the moon, &c. an astrqnomical clock, shewingthe aspects ’ of the sun and moon, age, phases, &c. all delicately made , cf card paper, cork, and wire only, packed in a deal case . .2 12 6$

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