RAYMOND: CORRELATION OF THE ORDOVICIAN STRATA. 277 
1. Yellow and white sandstone with numerous Obolus, 
one layer. 2 ft.3 in. = 2 ft. 3 in. 
Zones 1-5 represent the Packerort formation. 
Concealed to water-level. 
OntiKA. (Top 206 ft. above sea-level. Measured by Dr. Twen- 
hofel and the writer). 
11. Thin-bedded soft limestone with Echinosphaerites aurantium. 
| 5 ft. = 78 ft. 5 in. 
10. Thin-bedded light gray limestone with numerous 
Orthoceratites and many small “linsen.” Upper 
Linsenschicht. 7 ft.6in. = 73 ft. 5 in. 
Zones 10 and 11 represent the Dubowiki formation. 
9. Thin-bedded light gray shaly limestone with numerous 
Orthoceratites. A nine inch shaly parting is present 
four ft. above the base. 18 ft. 6 in. = 65 ft. 11 in. 
8. Lower Linsenschicht. 8 in. = 47 ft. 5 in. 
Zones 8 and 9 represent the Kunda formation. 
7. Heavy-bedded gray limestone with nine inches of shale 
at top. 5 ft. = 46 ft. 9 in. 
6. Thin-bedded nodular and shaly limestone 6 in. = 41 ft. 9 in. 
5. Heavy-bedded reddish limestone with green patches, 
weathering yellowish. 4ft.9in. = 41 ft. 3 in. 
4. Green sandy shale. , 4 ft. = 36 ft. 6 in. 
Zones 4 to 7 represent the Walchow formation. 
3. Hard red limonite layer. 3 in. = 32 ft. 6 in. 
2. Black shale, no fossils seen. 44iti Gin. = /32i8 3 mm: 
1. Cross-bedded reddish and white sandstone which dis- 
integrates to loose sand. Base not seen. 25 ft. = 25 ft. 
Zones 1 to 3 represent the Packerort formation. 
Concealed to water, 127 ft. 
CATHERINE Park, Revat. (Measured by the writer). 
7 Thin-bedded often shaly limestone. The highest layers 
in the quarries. Echinosphaerites and other cystids 
. common. Kuckers formation. 4 ft. = 47 ft. 
6. Light gray compact fine-grained limestone in beds 8 to 
15 inches in thickness. Fossils are very rare. Certain 
layers contain vertical, tube-like fillings suggesting 
borings. Largely quarried. 28 ft. = 43 ft, 
