DELAWARE COUNTY. —(38lsd 
to soon pulverize and to disappear as dust, or to pass off by the action of 
drainage water. With an occasional renewal, it may be used in that 
way. A successful enterprise in the manufacture of hydraulic lime from 
the lower portion of the black slate is in operation at Defiance, Ohio. It 
is known as the Auglaize cement, and promises to become a rival of those 
cements known in the principal markets of the country. 
The shale which overlies the black slate is very similar to the Olen- 
tangy shale immediately below it. They are both worthy of being tested 
thoroughly as fire-clay, or for the manufacture of a light-colored pottery, 
or “ Milwaukee brick.” 
THE WAVERLY SANDSTONE. 
Of the sandstone which comes next in the series very little need be 
said. Its excellences are well known, and have been attested by the ex- 
perience of builders throughout the country during the last forty years. 
It is the same (geologically) as the famous Berea sandstone, and is in- 
cluded within the Carboniferous rocks. Yet it has been observed to be- 
come much finer-grained and better adapted to bases for monuments, for 
erindstones and whetstones, and for ornamental architecture, in the cen- 
tral counties of the State, than in counties further north. It is now be- 
ing extensively used in the construction of bridges and culverts for the — 
new railroads in the eastern part of the county. Since the great con- 
flagration at Chicago, sandstone is being more frequently employed for 
walls of buildings than ever before. | 
Brick and Tile-—The surface of the Drift clay is employed in the man- 
ufacture of these articles by the following establishments : 
JIE SRE eV O OU SOM wArs MllOvar ww mceneebes mscccsesiestoases) Acccssceeiececeaccaet ceseiencest Brick. 
Wrnkehobimson:OhivelG Teena et uay it ark seek 2008 le ne ra 
Tolan eno xa ren LOmmLO win slips nerueceieses Liss seuieseicevacelacsssees selec: x 
Jacob Williams, Harlem township ....... Hae hale A Ssulatl suse waaay taeereeeteces 
— — Rich, SUOMI EIR aececcate re ents heeremimcuas’ roseeneas soteae eee: oh 
Eli Downing, ‘i Sieodoced pebob00H CbsBeOHaE bagpobodD do5e90000 op060 et 
ENORATM SP RUMACSH MD CLAW Aegina, sich ssauveuameclce ede seecslevecdsensscados aces caeneeiedenes 
Joseph Haas, CU NMEBE ABUL ae che DM ie aa. Cai, ean eR UNAS AE Ue 
Eraikg Cele ammmeen eacrae yi have teressuune eksah vocualeotsauale. POE RIAA een AU AN 
Geo. Sherrer, A Li AB Net 1s alta s SA a Tile and brick. 
Jame spa moma somsh) demy (ast kyean) esses csssicers cecceyetecmesnceereeececees ss 
Swanwioloson mr manllestSuNV Pron Stratlond\rsesseeceseeecesecceosceeclecees elec: ey 
Warnell dimondstlumaile west Ol owellicist:.sssuesresstedesitcceess covccsees By 
Arthur Robinson, 34 miles west Of Millville s....c0.0scc.icec.cc. wecccoses cocoeees Tile. 
