I am looking through old copies of Scientific American at Harvard University. wow what amazing images! i’ve only scratched the surface of it..the writing and images are fascinating.

I have been focusing mainly on the “Export Edition” which was distributed throughout the world in the late 1800’s. There were some ads in Spanish and a few in German, but it was clear that this is an “export” from the United States to the rest of the world. Anyway, I found this notice printed several times below. I wonder what it means? More mysteries as AstroDime works on La America CientĂ­fica. -sam smiley