01 September 2008

Happy Laboratory Day!

Lab4


Lab5

From A Guide to Elementary Chemistry for Beginners By Le Roy Clark Cooley (1886).

1 comment:

Anonymous said...

Hi. Taxacom discussion here: http://mailman.nhm.ku.edu/pipermail/taxacom/2008-June/027193.html
(exuviae vs. exuvia vs. exuvium)
Lisa