Things of Science unit from November, 1961 on natural rubber. This is a natural companion to the Synthetic Rubber unit just a few months previous.

Did you know the word “rubber” (called India Rubber) was coined by Priestley (clergy, scientist) because it could “rub” graphite pencil marks off paper?

Here is the booklet:

Things of Science #253 — Natural Rubber

More Things of Science scanned here.

The things:

Natural Rubber