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terials befides thofe above-mentioned ; fo others ima- 
gine, that there are fome intimations in ancient au- 
thors, which require, that it fhould actually be fo 
extended. Thus Mr. Caftells, the ingenious illus- 
trator of the villa’s of the ancients, thinks (20), that 
“ if this had not been the cafe, Palladius would not 
“ have given directions to his hufbandman to make 
“ Jpecularia in the olearium (21), or ftore-room, 
u where the olives were prefer ved. For it appears 
“ (fays this author) from Pliny’s defcribing a tem- 
“ pie (22) built of the lapis Jpecularis , or phengites, 
u as the greateft rarity in his time, and the mention 
“ Plutarch makes of a room in Domitian’s palace 
“ lined with it, that it was not common enough 
“ for hulbandmen to purchafe j” viz. in fuch quan- 
tities, as were required for the purpofes mentioned 
above. 
I fhall not take upon me to decide upon the weight 
of this argument of Mr. Caftells ; but only obferve, 
that if any one fhould be induced by it to think, that 
the ufe of glafs for windows may be of much greater 
antiquity than is commonly allowed, or even as old 
as the fragment, which occafions theie remarks, he 
may find other probable reafons to corroborate his 
opinion. As, firft, that there leems to have been a 
natural and obvious tranfition from the practice of 
(20) Villa’s of the Anc. illullrated, p. iv. 
(21) One of Pliny’s cautions for prefcrving apples is — Aujiros 
fpecularibus or cere. Nat. Hift. lib. xv. c. i6. 
Martial further informs us, that the Romans ufed to fereen their 
orchards of choice fruit-trees with fpecuiarta. Lib. viii. epig. 14. 
(22) I fuppofc he means that of Fortuna Seia. Lib. xxxvi. 
c. 22. 
ufing 
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