A History of Inventions, Discoveries, and Origins, Volume 2 (of 2)Note 576 — PRINCE RUPERT’S DROPS. LACRYMÆ VITREÆ.William Johnston translationCommentarius de rebus ad eum pertinentibus, Lips. 1719.◇Copy noteReturn to PRINCE RUPERT’S DROPS. LACRYMÆ VITREÆ.