Well Loved Books
I love it when I get a chemistry book or a cookbook out of the library and it has spots on the page or there are pieces of pages missing. It is at that point that I know someone has used and loved the book. Here are three recent examples.
This is one of the pages I printed from a digital book I have. It is all about sulfur and I have more pictures at a future date of all the fun things I did with it.
This comes from a book entitled "Things A Boy Can Do With Chemistry" This page is talking about silicate gardens. I'm guessing that the yellow blotch is iron silicate.
This is from an old chemistry set that my dad had.