Edward Stratemeyer 
Rover Boys on the Farm [PDF ebook] 
Or, Last Days at Putnam Hall

After narrowly surviving dozens of adventures and close calls, Rover brothers Tom, Dick and Sam spend some much-needed vacation time on the family farm. Informed by their father that they must soon take their leave from their beloved school, Putnam Hall, the boys begin to contemplate their futures — and engage in a few uproarious pranks and stunts for old time’s sake.