This book also contains two discourses of the powder of sympathy and of the vegetation of plants. The main body of this work is two treatises, one concerning bodies, the other concerning man’s soul. Sir Digby aims no further than to show what may be effected by corporeal agents. There, possibility serves his turn as well as the determinate indivisible point of truth. He is obliged to that, in regard of which, the numerous crooked narrow crannies, and the restrained flexuous rivulets of corporeal things, are all contemptible, further than the knowledge of them serves to the knowledge of the soul. Due to the age and scarcity of the original we reproduced, some pages may be spotty, faded or difficult to read. Written in Old English.