through what agency

Several cars were offered through the “surprise agency” and also labeled “supplier choice,” which means you won’t know what vehicle you’re getting or through what agency.

“Really? And through what agency?”

It is not always by any means clear through what agency the solid rock has been reduced to a granular condition; for there are beds of quartzose sand, where the sharp, angular shape of the particles renders it highly improbable that they have been formed by gradual abrasion and attrition, and where the supposition of a crushing mechanical force seems equally inadmissible.

If we ask through what agency Ryerson was enabled to secure this gradual executive strength that makes our educational machinery so effective the answer must be—the Legislative grant.

But through what agency—and to whom the debt?