| a
brief
history of soap making |
how does
soap work? |
what is
soap made of? |
| the difference
between bar soaps
and liquid soaps |
http://waltonfeed.com/old/soap/soap.html#water
http://www.cranberrylane.com/soapmaking.htm
http://www.certified-lye.com/lye-soap.html
http://chemistry.about.com/library/weekly/aa081301a.htm