The Authorship and Sources of the Peri sēmeiōn Ascribed to Theophrastus

The IIερὶ σημείων (abbreviated hereafter to ΠΣ) is entitled in the MSS περὶ https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781351316569/970a35c8-615d-43fc-bd02-bc90612531ca/content/in10_u001.tif"/>. ¹ It begins with a brief introduction (sections 1-9) which may be summarised as follows:

Section 1. The author states his subject and acknowledges his debt to sources.

Section 2. The varieties of astral risings and settings are set forth.

Section 3. Some signs are peculiar to mountainous areas and can best learned from a local expert

Section 4. Some astronomers have used the physical features of their own localities for their observations.

Section 5. Other signs are derived from animals, from domestic phenomena, and from the sun and moon. Why the interlunary period https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781351316569/970a35c8-615d-43fc-bd02-bc90612531ca/content/in10_u001a.tif"/> is stormy.

Sections 6-9. The various periods (i.e. year, month, day) are all approximately divided in half; the weather prophet must take account of this, for the weather tends to change at the divisions.