156 Miscellaneous Notices^ <^c. 



No. 23. White sandstone, composed chiefly of arenaceous 

 quartz ; it is used in the composition of glass, at the manu- 

 factory in Zanesville, and found in an extensive bed, three 

 miles above that town, on the Muskingum bank. 



No. 24. Three specimens of common sandstone, from the 

 falls in the Muskingum river, at Zanesville — taken tw^enty 

 feet below the surface of the rock — impressed with the scales 

 of a fossil fish, and containing charcoal. The figure of the 

 fish, was very finely engraved on the face of the rock, between 

 the fissures made in quarrying, but was broken up into small 

 pieces by the workmen ; the whole cast was five feet long. 

 The canal round the falls is cut in this rock ; from this canal 

 numerous slips or cuts, are made laterally into the Musking- 

 um, affording sites for mills. In making a cut of this kind 

 last summer, several fossil fish were found, and a considera- 

 ble bed of charcoal. 



No. 25. A primitive rock partly decomposed or disinte- 

 grated, and containing much sahlite ; found near New^ark, in 

 diluvial soil ; but found also on the tops of the highest hills in 

 Athens county, and in the waters of Federal creek. 



Nos. 26 and 27. Argillaceous iron, in concentric layers, 

 from the hills, two miles south east from Newark. 



No. 28. Globular, pyritous iron, found in the sandrock at 

 Zanesville. Large quantities of globular, argillaceous iron 

 ore, are found in the alluvial soil of Licking creek, at Newark, 

 from the size of a four pound to that of a forty eight pound shot; 

 some are very round, others are shaped like an urn. They 

 are sometimes found in digging for iron ore, but mostly in 

 searching for limestone, which is obtained in large and small 

 detached masses, from six to ten feet deep, covered with grav- 

 el and earth. The globular iron ore is covered with a coat 

 of rust, one half or three fourths of an inch thick, which easi- 

 ly comes off in scales. I have (says Dr. li.) two of these 

 globes; one eight inches, the other six in diameter. 



No. 29. Compact, argillaceous iron ore, very rich ; found 

 in scattered nodules, through the hills in Washington county, 

 from one to fifty pounds weight; sometimes in extensive beds. 



No. 30. Red iron stone, the ore being apparently in the 

 chemical condition in which it is in the ha3matite ; it occurs 

 in beds. 



No. 31. Carbonate of iron, or friable argillaceous ore; 

 Marietta — found in large beds, decomposing on exposure to 

 rain and air, and having the appearance of the rust of iron 

 of the shops. 



