It seemed like one of the most wholesome, homespun things that a local library could do — but it was exactly how an innocent branch library like the Joseph T. Simpson Public Library in Mechanicsburg, Penn., headed down the road to lawbreaking.

It started this way. A local group called the Cumberland County Commission for Women had heard of a new thing that local libraries were doing — creating lending libraries for seeds. Someone found an old card catalog and turned it into seed packet storage. Someone else got advice from the local Penn State Ag Extension office. With the help of the librarians at Joseph T. Simpson, they launched the project in April, on Earth Day.

Then, in June, the library received a letter from Johnny Zook, seed program supervisor at the Pennsylvania Department of Agriculture. The missive informed the library that it was in violation of the Seed Act of 2004. You can read the correspondence because the Simpson Seed Library, like the good librarians they are, posted it on their website.