PLATES IN VOL. XIV. 



Plate Page 



XCIV. — Sketcli of the Situation of aGreen Fluor Mine, in Cumberland. 35 



XCV. — Mr. Hall's Improved Microscope for opaque Objects, &c.' 107 



XCVI. — A new Galvanic Instrument 181 



On the Construction of Sails 185 



Gas Blow-pipe 234 



XCV1L— State of the Thermometer, Barometer, and Wind, at Cork, 



for January, February, and March 3 IS 



XCVI1I. — State of the Thermometer, Barometer, and Wind, at Cork, 



for x\pril, May, and June 386 



XCIX. — On the Turquoise and the Calaite 418 



ERRATUM IN VOL. XIV. 



In Mr. Brooke's paper, "On the Measurement of the Angles of Crystals," p. 465, 



line 6, for 1 5' read 45'. 



