Field Notebook: Kentucky, Pennsylvania, Tennessee
Page 9
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Spherulite are found and become smaller toward the top and internally very green. Glue is kept in light of heat is supplied by natural gas. Sometimes this layer is cast out upon a flat bottom covered with sand about two feet deep, and this is broken up later and reheated when the furnace is repaired. There also the spherulites are formed near the bottom, spherulites are also formed in the pits holding some two pieces of cracked glass. From them there seems that the glass is taken for working in the pane. The glue in these