NOTE.—Since February, 1908, the Topography Division has been preparing rural-delivery maps of counties in which rural delivery is completely established. They are published in two forms, one giving simply the rural free delivery routes, starting from a single given post office, sold at 10 cents each; the other, the rural free delivery routes in an entire county, sold at 35 cents each. A uniform scale of 1 inch to 1 mile is used. Editions are not issued, but sun-print copies are produced in response to special calls addressed to the Disbursing Clerk, Post Office Department, Washington, D. C. These maps should not be confused with the post route maps, for which see Monthly catalogue for February, 1922, page 469.