The Rover Boys on the Farm; or, Last Days at Putnam Hall by Arthur M. Winfield

It is a large number of volumes to write about one set of characters, isn’t it? When I started the series, many years ago, I had in mind, as I have told you before, to pen three books, possibly four. But as soon as I had written “The Rover Boys at School,” “The Rover Boys on the Ocean,” and “The Rover Boys in the Jungle,” there was a cry for more, and so I wrote “The Rover Boys Out West,” “On the Great Lakes,” “In the Mountains,” “On Land and Sea,” “In Camp,” “On the River,” “On the Plains,” and then “In Southern Waters,” where we last left our heroes.