[Rockhounds] Foraminifera Cards For Christmas

[Paul]

The Nerdiest Christmas Cards Ever May Be
These Microscope Slides Composed of Shells
The unusual holiday exchange, which lasted
decades during the early 20th-century, hints
at the drama between the two colleagues
Smithsonian By Allison C. Meier, December 17, 2018
https://www.smithsonianmag.com/history/two-scientists-exchanged-christmas-greetings-microscope-slides-180971049/

A century ago, two scientists exchanged
fantastic microscope slides as Christmas cards
https://boingboing.net/2018/12/17/a-century-ago-two-scientists.html

Yours,

Paul H.