Note 57 — LXXX. A Dissertation on the Antiquity of Glass in Windows. In a Letter to the Rev. Tho. Birch, D. D. Secret. R. S. By the Rev. John Nixon, M. A. F.R.S.
Reading edition
One of Pliny’s cautions for preserving apples is—Austros specularibus arcere. Nat. Hist. lib. xv. c. 16.
Martial further informs us, that the Romans used to screen their orchards of choice fruit-trees with specularia. Lib. viii. epig. 14.