382 DESCRIPTION OF PLATES. 



PLATE II. Fig. 4, 5, 6, Are diagrams illustrative of M. Babinet's paper on the 



Law of Colours seen by transmission through Grooved Surfaces. 



Seep. 109^112. 

 Fig. 7, 8, Represent the furnaces for the manufacture of Sulphur at 



Solfatara of Fozzuoli. See p. 136. 

 Fig. 9, Represents an Electrical Cloud as seen by Mr Macvicar. See 



p. 117. 

 Fig. 10, Represents Mr Macvicar's improved Air Pump. See p. 16.3. 

 PLATE III. Fig. 1 — 6, Are diagrams illustrative of Dr Brewster's paper on the 



Reflection and Decomposition of Light at the separating Surfaces of 



different Media. See p. 209—229. 

 Fig. 7, Shows Dr Wollaston's Method of fitting up his Microscopic 



Doublet. See p. 324. 

 Fig. 8, 9, Represent one of the forms and applications of Mr Fowler's 



Thermosiphon. See p. 345.* 

 Fig. 10, Represents Mr John Adie's New Cistern for a Barometer. 



See p. 338. 

 PLATE IV. Contains a perspective view and section of the Temple of Jupiter 



Serapis at Pozzuoli. See pp. 268,-273. 



EDINBURGH: 

 PRINTED BY JOHN STARK, 



Old Assembly Close. 



