Note 435 — Terminal Essay. (continued 4)

I cannot but vehemently suspect that this legend was taken from much older traditions. We have Jubal the semi-mythical who, “by the different falls of his hammer on the anvil, discovered by the ear the first rude music that pleased the antediluvian fathers.” Then came Pythagoras, of whom Macrobius (lib. ii.) relates how this Græco-Egyptian philosopher, passing by a smithy, observed that the sounds were grave or acute according to the weights of the hammers; and he ascertained by experiment that such was the case when different weights were hung by strings of the same size. The next discovery was that two strings of the same substance and tension, the one being double the length of the other, gave the diapason-interval or an eighth; and the same was effected from two strings of similar length and size, the one having four times the tension of the other. Belonging to the same cycle of invention-anecdotes are Galileo’s discovery of the pendulum by the lustre of the Pisan Duomo; and the kettle-lid, the falling apple and the copper hook which inspired Watt, Newton and Galvani.