Nov. 16, 1888.] 1 < 1 [Branner. 



scattered along the north shore, and making occasionally the entire circuit 

 of Cape Cod, are soon deposited in Provincetown harbor. Here also, as 

 at Nantucket, the movement is opposite to the prevailing winds. The 

 transportation of such heavy materials as coal and bricks has been men- 

 tioned." 



Mr, Small, the keeper of the light at Truro, said that "When articles 

 float light upon the water, and offer a large body to the resistance of the 

 wind, they may during the violence of the storm be carried against the 

 current. During seven-eighths of the time, the waves break on the shore 

 at Truro in a direction to the northward of west, the shore itself running 

 north and south. This takes place in opposition to northerly winds. If 

 these winds are exceedingly strong, they may for a short time overcome 

 this prevailing tendency. It is the same on the eastern shore of Sandy 

 Hook and of Nantucket. As the flood tide runs in a northerly direction 

 at each of these places, the idea is suggested that there is an intimate con- 

 nection between the course of the current and the manner of approach of 

 the waves to the beach." * * * "The constructive process of the 

 flood is equally exhibited in the way in which the hooks, etc., are built 

 up. They extend and increase always in the direction of the advancing 

 current, as, for example, the Great Point of Nantucket gains constantly 

 to the north,, and the point of Monomoy to the south, which are the direc- 

 tions of the flood currents at these places. * * * And so with all the 

 hooks, both great and small, of the north-eastern coast, whether formed 

 on the borders of the sea or in enclosed bays and harbors." 



Hitherto the tides have been regarded chiefly as an astronomical prob- 

 lem; but if the views brought forward in this memoir are correct, they 

 must hereafter be treated also as a strict geological problem. It has been 

 shown that the courses of the tidal currents must in general be due to the 

 forms of the shores" (page 148). "In this memoir, the forms, localhies 

 and amounts of the alluvial deposits have been attributed to the active in- 

 fluence of local currents." 



Notes on the Botocudus and their Ornaments. 



By Prof. John C. Branner. 



[Read before the American Philosophical Society., November 16, 188S ) 



The Botocudus of Brazil have been described at more or less length by 

 Prince Maximilien,* Auguste de St. Hilaire,f Lery, :}: Denis,§ Bigg- 



* Voyage au Bresil, par S. A. S. Maximilien (French translation from the original 

 German), Vol. ii, p. 207 et seq. 



t Voyage dans les provinces de Rio de Janeiro et de Minas Geraes, par Augu.-ite de 

 St. Hilaire, 2 vols. 



JHlstoire d'vn voyage faict en la terre dv Bresil, par Jean de Lery, p. 103-1. 



g Bresil, par Ferdinand Denis. This work reproduces five plates of these Indians. 



