What does the word treats mean in this context? I don't think it means entertainment, food, drink etc.. Maybe it is an old usage of this word? Does it mean influencing factors or something like that?
This is the first part of the title of the first chapter of the novel "Oliver Twist" by Charles Dickens. The whole title reads:
Treats of the Place Where Oliver Twist was Born and of the Circumstances Attending His Birth
Best Answer
This phrase is the name of the first chapter in Oliver Twist. Let's take a look at a few other chapter names:
Source: Dickens, C. (1838). Oliver Twist.London, England; Bentley's Miscellany. http://etc.usf.edu/lit2go/50/oliver-twist/
The examples I gave, and a few others, have chapter names that follow the pattern "Chapter XX does Y." Chapter 11, in particular has this structure twice.
So it looks like treats is being employed as a verb.
As for meaning? Treats can mean something like "provides." In modern English, it is usually used for desirable things and is usually followed by "to." (e.g. I treated the basketball team to ice cream after the game) I don't know if the convention wasn't established when Dickens wrote these chapter headings, or if he is just being colorful, but it looks like your quote means:
Also, with acknowledgement to a comment by @Bob Jarvis: Dictionary.com's 9th definition for treat gives an example that uses treats + of: "to deal with a subject in speech or writing; discourse: (example) a work that treats of the caste system in India."