Miss Pickerell Harvests the Sea by Ellen MacGregor and Dora Pantell is the seventh in the Miss Pickerell books. Ellen MacGregor died in 1954, so only the first four were written by her.
Miss Pickerell is an elderly woman of enough means to travel the country while indulging her interest in science. As she also seems to have a large extended family without having children of her own, she's a prototype for Jessica Fletcher.
This series is so very cute..if you like children's books from the '50's and '60's..Miss Pickerell is certainly an eccentric old dear, but lots of fun as well.