01005cam a2200253 4500 243215884 TxAuBib 20010117120000.0 810713s1981||||||||||||||||||||||||eng|u 9780866251631 0866251634 TxAuBib Gregory, O. B, 1940-, (Olive Barnes.) Glass [BOOK] / written by O.B. Gregory ; illustrated by Denis Wrigley. Windermere, Fla. : Rourke Publications, 1981. 24 p. : col. ill. ; 21 cm. Easy reading information series Describes how glass is made by heating sand with other materials in a furnace and molded, blown, or rolled into bottles, windows, and other things. Includes questions and vocabulary. 20010117. Glass Juvenile literature. Glass. Wrigley, Denis, ill. Easy reading information series.