484 
tlu'in llirouL;!! lliu ii|tlan(l l)c'lt, by way of its own <;a|». The <jjaps 
in the upland made by the smaller streams before their head- 
waters were captured still exist as shallow notches. 
If the original consequent streams were all of about equal 
size, no captures would occur though the lowland and highland 
belts Mould be developed the same. 
Ym. 2. Diagram showing adjusted drainage. 
The case shown in Fig. '1 is the simplest case possible. If 
the original shore line were irregular instead of, as in the ideal 
case, straight, there would be some modification of the resulting 
forms. Or by varying some other factor the result Avill be 
slightly modified. 
In the simple case the diagram of the adjusted drainage is 
rectangular. If, however, the coast line had been convex land- 
ward, forming an embayment and thereby causing the out- 
crop of the strata to have a similar occurrence, the diagram of 
the adjusted drainage would be as shown in F'ig. 3. 
Again, if the hard member of the coastal plain were more 
resistant on one side of the master stream than on the other. 
