GULLIVER. — SHORELINE TOPOGRAPHY. 



217 



Gaspee Point 



members of the circulatory system, the deposition would take place. In 

 the majority of places the outflowing tide would reverse the direction of 

 flow and transportation of shore waste, therefore the combined action of 

 ebb and flow would shape the tidal foreland so that its central axis would 

 be at right angles to the general direction of tidal flow. 



The cuspate forelands, which are mentioned under the three following 

 heads, are arranged in three stages of progressive development, — the 

 V-bar stage, the lagoon-marsh stage, and the filled stage. 



V-bar Stage. — A much younger stage than that of West point is seen on the 

 same sheet at Meadow point. Here the bars surround a relatively large lagoon, 

 which apparently has hardly begun to fill. The form of this bar is what Mr. Gilbert 

 has called V-shaped.* 



Various examples on the east 

 coast of Port Discovery (C. S., 

 648) show V-shaped bars enclos- 

 ing lagoons. Tlie majority of 

 forelands in this bay have their 

 greater extension alongshore. 

 Beckett point, however, has its 

 length normally at right angles 

 to the shoreline. 



At point Monroe, near Port 

 Madison, Washington (C. S., 

 663), a looped bar encloses a 

 lagoon somewhat similar to those 

 just mentioned. The shore drift 

 is here all from the left, and the 

 curve of the bar is convex sea- 

 ward. At point Jefferson farther 

 north on the same sheet there is 

 another convex bar enclosing a 

 lagoon where the drift has been 

 from the left, as shown by the 

 continuation of the cliff curve in 

 the bar. These two examples 

 do not give the typical cuspate 

 form. 



Laqoon-marsh Stage, Figure 

 26. — Various stages of lagoon 

 filling are shown on the Port 



Townsend sheet (C. S., 6405, old number, 647). Walan point foreland has consid- 

 erable area of lagoon, and still maintains open connection with Port Townsend. 

 At point Hudson there remains an unfilled lagoon, but its connection with the sea 

 is lost. At point Wilson a small lagoon now exists, while at Kala point the lagoon 



Figure 26. Lagoon-marsh Stage of Tidal 

 Cuspate Foreland : Gaspee Point, Narra- 

 gansett Bay, Rhode Island. 



* Lake Bonneville, 57, 58, PI. VII. 



