Larry Jaques wrote:
On Thu, 24 Feb 2011 22:39:05 -0700, Steve Ackman
17:05:06 -0800, Larry Jaques, wrote:

I see that you dusted the mothballs off your book.

If I _dusted_ some napthalene off the book, it
probably wouldn't have been in the form of balls,
would it?

OHHH! Moth balls. Got it. ;-)
But... how on earth would moth balls have ever gotten
on the book to begin with?

Yeah, yeah, I know. Damn literalists.

sigh You use paradichlorobenzene mothballs for books.

Sigh yourself.

"Naphthalene, also known as naphthalin, bicyclo[4.4.0]deca-1,3,5,7,9-pentene
or antimite is a crystalline, aromatic, white, solid hydrocarbon with
formula C10H8 and the structure of two fused benzene rings. It is best
known as the traditional, primary ingredient of mothballs."
^^^^^^^^^^ - emphasis mine
--- http://en.wikipedia.org/wiki/Naphthalene

But in HS. chem. class, we did experiments with:

"1,4-Dichlorobenzene (para-dichlorobenzene, p-DCB, PDB) is an organic
compound with the formula C6H4Cl2. This colorless solid has a strong odor.
It consists of two chlorine atoms substituted at opposing sites on a
benzene ring. p-DCB is used a pesticide and a deodorant, most familiarly in
mothballs in which it is a replacement for the more traditional
naphthalene.[1]"
^^^^^^^^^^^ - emphasis mine
--- http://en.wikipedia.org/wiki/1,4-Dichlorobenzene

Hope This Helps!
Rich