( m j 
LIST OF PLATES IN VOLUME VIIT. 
Page 
Plate I. Figs. 1.— 7* represent Mr Forrest’s New Gun Lock, 24 
Fig. 8. represents Mr Whitelaw’s Escapement, 27 
II. Contains sections of the Caves of Gailenreuth and 
Kirkdale, - - 56-58 
III. Contains Diagrams illustrative of Mr Benjamin Mar- 
tin’s Essay on Iceland Crystal, - 150 
IV. Figs. 1. — 7- represent the method of constructing Po- 
lyzonal Lenses, and Compound Prisms, - 160 
Fig. 8. shews the Prickle at the end of the Lion’s 
Tail, - 266 
V. Contains Diagrams illustrating the Second Essay of 
c* ! Mr Benjamin Martin on Iceland Crystal, - 245 
VI. represents the new Genus of Fungi, Schwemilzia , esta- 
blished by Mr R. K. Greville, - 256 
VII. Figs. 1. — 15. represent the various kinds of Electro- 
Magnetic apparatus that have been invented, 368 
Fig. 16 . is Dr Brewster’s Reflecting Microscope, 326 
Fig. 17. is Dr Anderson’s Drop-measure, - 418 
Figs. 18. — 21. represent the new Lamps, with Qua- 
druple Wicks, used in France, - 382 
Jan. 
dOi 
18-V6. 
P. Neil*. Printer, 
