On the magnet, magnetick bodies also, and on the great magnet the earth / a new physiology, demonstrated by many arguments & experiments

by Unknown

rays of magnetick virtue, [95].

Reinoldus, Erasmus (or Rheinholdus), [213].

remora, the (or sucking fish), [7], [63], [110].

resin becomes electrical by friction, [48], [52].

respective points, [5], [153], [161], [162].

reversal of polarity, [101], [137].

revolution of the globe, [46], [81], [91], [220].

repulsion, electrical, denied to exist, [113].

Rhazes (Muhammad ibn Zakarīyā), [34], [35].

rings, on the verticity of, [129].