"circulate by" is an acceptable phrase in written English.
You can use it to mean "spread through or around," as in "Rumors quickly circulated by the small town."
She answered, "We circulate whatever we want to circulate by publishing it in The Post.
Speeches lack speakers, and strong emotions — suspicion, despair, disgust — seem to circulate by themselves.
Jokes that circulate by e-mail, especially off-color ones, are not only frowned upon but have also been established as a source of legal liability.
Though India's economy has cooled, the demand for property in elite areas remains so strong that even finding a house for sale is tricky: formal listings do not exist; prices usually circulate by word of mouth.
An ethics commission of the American Bar Association is expected to circulate by early November a draft proposal recommending that ethics rules be amended to allow other professional service providers — like accountants, economists and social workers — to partner with lawyers and own up to 25 percent of a law firm.
The heat exchangers consist of a loop of pipes or tubes suspended in the geothermal well, through which "clean" secondary water is pumped or allowed to circulate by natural convection.
