Note 110 — MEMOIRS OF THE LIFE OF DAVID RITTENHOUSE; ANTERIOR TO HIS SETTLEMENT IN PHILADELPHIA.
Reading edition
Jeremiah Horrox and William Crabtree, two Englishmen, were the observers of the Transit of Venus of 1639.
Reading edition
Jeremiah Horrox and William Crabtree, two Englishmen, were the observers of the Transit of Venus of 1639.