Although he clearly knows of the treatise’s existence, Erotian considers it spurious and does not include any word from it in his Glossary.1 Galen, on the other hand, glosses six terms from “the greater Prorrhetic (which some call the second).”2 In his treatise Prognostic, he also quotes the line “I, however, shall not prophesy anything like this” from ch. 2 of Prorrhetic II, taking the occasion to indicate that he agrees with “some physicians who hold Prorrhetic II not to be among the genuine Hippocratic books.”3
The contents of Prorrhetic II can be summarized as follows:
- 1See Erotian p. 9, where he lists Prorrhetic I and II among the semiotic books, and Nachmanson p. 458.
- 2Galen vol. 19, 69 ἀγλίη; 19, 77 ἀμβλυωσμός; 19, 88 βδέλλῳ; 19, 109f. κατάστημα; 19, 120 μᾶσσον and 19, 149 ὑποξύρους. 19, 127 παράλαμψις also appears to be from Prorrhetic II (ch. 20), since this is the only occurrence of the word in the Hippocratic Collection.
- 3Galen vol. 14, 620 = CMG V 8,1, pp. 88–90.