Looking at some of the book's pages today gave food for thought and some interesting information.
Some is presumably relevant today:
And some might look quite bizarre by today's standards. I wonder if any of these records remain today.
Years later I came across Frank Bunker Gilbreth the father of work study and O&M (Organisation and Methods) having read the book by two of his 12 children, Frank and Ernestine, entitled Cheaper By The Dozen. One of his tricks was to put things he wanted the children to learn on the back of the toilet door.