Or the various types.  ??
Besised simple straight (cylinder) rods...we have found "lobed" ones,
etc.   We do have a complete (I assume) dry cell battery from our most
recent project (soil remediation in downtown San Diego)...with a paper
outer layer (cover).  Am tempted to dissect it...to see all the
layers...and get a better understanding...but, guess I probably
shouldn't.

Carol Serr
Jones & Stokes
CRM Lab Director
9775 Businesspark Ave., Suite 200
San Diego  CA  92131-1642
858-578-8964  *  FAX 858-578-0578
[log in to unmask]  www.jonesandstokes.com


>-----Original Message-----
>From: HISTORICAL ARCHAEOLOGY [mailto:[log in to unmask]] On 
>Behalf Of Charles L Heath
>Sent: Wednesday, May 23, 2007 6:50 AM
>To: [log in to unmask]
>Subject: Re: Carbon electrode rods - ID sources
>
>Larry, et al.
>
>Has anyone compiled a carbon rod/carbon core typology chart 
>for Late 19th/Early 20th c. cores?
>
>Thanks,
>
>Charles Heath 
>