Note 10 — LECTURE II. GRAVITATION—COHESION.
Reading edition
Page 59. “Prince Rupert’s Drops.”-These are made by pouring drops of melted green glass into cold water. They were not, as is commonly supposed, invented by Prince Rupert, but were first brought to England by him, in 1660. They excited a great deal of curiosity, and were considered “a kind of miracle in nature.”.