382 ELGEE : GLACIATIOX OF NORTH CLEVELAND. 
3. — Period when the Bousdale overflow at 675 feet was 
formed. (Kendall.) 
4. — Period of extra-niorainie drainage at the foot of 
the (Cleveland Hills during the earlier stages of Slapewath. 
5. — Final stages of the Slapewatli and Langbaurgli 
overflows. 
6. — Period of readvance at Kildale leading to the forma- 
tion of Sowerdale and the anomalous course of the Leven. 
7. — Period when Scugdale Slack and the Stokesley 
moraines originated. 
