1/5/99
Make a 1% solution of Formvar in methylene chloride (chloroform will work
too). Chill the solution and some glass slides (leave them outside with a
cover to keep the snow off). Dip a toothpick in the Formvar solution and
place drops on a slide, then catch snowflakes on a piece of black velvet or
something similar. With a toothpick wetted with the solution, touch a
snowflake ever so slightly and it will cling so you can transfer it to a drop
on the slide. Cover the slide and let the solvent evaporate (this happens
very quickly). Take the slide inside and the snowflake will melt, leaving the
Formvar replica. (To preserve the most delicate structure, leave the slide
outside longer to let the water sublimate).
This is a great treatment for cabin fever. Happy New Year.
Paul Grover
Pbgrover@aol.com