. 50.] 8ULPIIUB. 201 



pumice-earth, extremely good for the purpose when it can be 

 in ml o to unite. The Greeks have always preferred walls of 

 brick, except in those eases where they could find silicious 

 stone for the purposes of building: for walls of this nature 

 will last for ever, if they are only built on the perpendicular. 

 Hence it is, that the Greeks have built their public edifices arid 

 the palaces of their kings of brick ; the wall at Athens, for 

 example, which faces Mount Hymcttus ; the Temples of 

 Jupiter and Hercules at Patne, w although the columns and 

 architraves in the interior are of stone; the palace of King 

 Attains atTralles; the palace of Croesus at Sanies, now con- 

 verted into an asylum* for aged persons ; and that of King 

 Mausolus at llalicamassua ; edifices, all of them, still in ex- 

 istence. 



Murnonaond Yarro, in their rcdileslnp, had a fine fresco paint- 

 ing, on the plaster of a wall at Lacedaemon, cut away from 

 the bricks, ami transported in wooden frames to Koine, for the 

 purpose of adorning the Comitium. Admirable as the work 

 was of itself, it was still more admired after being thus trans- 

 ferred. In Italy also there are walls of brick, at Arretium 

 arid Mevanitti* 1 At Home, there are no buildings of this de- 

 script ion, because a wall only a foot-and-a-half in thickness 

 would not support more than a single story; and by public 

 ordinance it has been enacted that no partition should exceed 

 that thickness ; nor, indeed, docs the peculiar construction of 

 our party-walls admit of it. 



ciur. 50. (15.) SULPHUR, AND THE SKVEUAL VARIKTIF.S or IT : 



FOUUTKKX KKM KD1ES. 



Let thus much be deemed sufficient on the subject of bricks. 

 Among the other kinds of earth, the one of the most singular 

 nature, perhaps, is sulphur, an agent of great power upon other 

 substances. Sulphur is found in the ^-Eolian Islands, between 

 Sicily and Italy, which are volcanic, as already 5 ** stated. But 

 the finest sulphur of all, is that which comes from the Isle of 

 Melos. It is obtained also in Italy, upon the range of hills in 

 the territories of Xeapolifl and Campania, known as the Leuco- 

 giei : 93 when extracted from the mines there, it is purified by 

 the agency of fire. . 



* 9 00 B. iv. c. 5, and B. xxxvi. c. -I. 



" " <;Tiisi:i." '" JStc 15. iii. c. 19. ** In B. iii. c. 6. 



3 See B. xviii. c. 29. 



r *) 



L - 



