How about as an audible indicator of when the water was boiling? They would
start rattling in the boiler. Glass discs are sold today to put in a pot on
the stove so you know when the unwatched pot is about to boil over.
George Myers
(Without them they'rd a cud a bin boilerplate all over the place, on the
Washington stills?)
----- Original Message -----
From: "LOCKHART BILL" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, July 29, 2003 6:37 PM
Subject: Glass Balls
> One my students brought in several glass "balls" that the found near a
> brick factory. These are solid, not hollow, and rough on the outside. Do
any of you
> know anything about this type of artifact?
>
> Thanks,
>
> Bill
>
> Bill Lockhart
> New Mexico State University
> Alamogordo, NM
> (505) 439-3732
>