The hyphen in such a case is always the closing character in the first line.

Clearly this division must be so made as to assist the reader in his task.

The primary purpose of all printing is to be read.
Anything that adds to the legibility of the printing improves it; anything that detracts from its legibility harms it.

How can we so divide words that the legibility and intelligibility of the text will be maintained, the line justified to register, and the beauty of the page enhanced?
These ends--legibility, intelligibility, and beauty--are the aims of all the rules which have been devised for the division of words.

These are the things the reader will see and by them he will judge the results.