Research and Rabbit Holes

I'm working with and in love with this 1968 Popular Mechanic Encyclopedia (PME) set.  What a fabulous bit of work, history, usefulness and plenty of what would now be potential personal injury and class action suits waiting to happen. Plus bringing up old woulds of being a girl with shop-class inclinations at a time when it wasn't available for girls.
Looking for the "right" image in the "right" location for a bookart idea (in the PME) hasn't come yet but led me a merry chase online learning hand signals for scuba divers and research into William Morris designs.
In book 16, VA-ZO -There is a Weed Killers article introducing new chemicals and hope for "embattled homeowners and farmers" followed by (for you over 40 or 50 crowd,) a Euell Gibbons Wild Foods article.   Love the juxtaposition. That sent me online to see if any of those herbicides and pesticides have since been banned.  I still don't know.  What I learned was too depressing to continue.
Thank goodness there is a wonderful William Morris rabbit hole to get lost in...