Chinocrates, [2].

circumpulsion, doctrine of, [3], [61].

clamps (open kilns), [26].

clay when burnt is magnetick, [26], [43], [97].

clepsydra, [231].

Coimbra, College of, [5].

coition (mutual attraction), [45], [46], [60], [65], [67], [68], [81], [98], [99], [103], [109], [131].

definition of, *[vj], [68].

orbe of, *[vj].

colours of loadstones, [9], [10], [27].