Miscellanies. 153 



Localities visited, and some incidents of the travelling term of 1&3Q, 



in the form of a Journal. 



# 



Tuesday, June 22. — Visit the Magnesian rocks at Iioboken, op- 

 posite New York, and collected specimens of serpentine, hydrate jo( 

 magnesia, magnesite, &c. Collected marine plants, and some ma- 

 rine animals. 



Wednesday, 23. — Take the steam boat for Tarry-town. Visit the 

 opposite Palisadoes in row-boats. Collected specimens of Basalt in 

 most of its varieties — as greenstone trap, amygdaloid, and basaltic 

 breccia (trap-tufi). Columns often twelve feet in diameter, in very 

 regular polygons. Cross to Sing-Sing. 



Thursday, 24, 33 M.f — Visit the extensive vein of copper py- 

 rites, which is embraced in a calc-spar gangue, and walls of lime- 

 stone. — Visit the State prison, which is built of the granular lime- 

 stone, on which it stands. Examine both shores of the Highlands 

 in a sail-boat, as far as the Military Academy at West Point. The 

 rocks at both extremities of the Highlands are of gneiss and horn- 

 blende — next towards the centre, sienitic hornblende — centre ones, 

 crystalline and slaty granite, (gneiss,) 



rocks. — Here we find green and w T hite coccolite, and beautiful grains 

 of grass green serpentine, set in tabular spar — also, resplendent horn- 

 blende, in veins traversing slaty granite, and gneissoid hornblende 



rocks. 



Friday, 25, 54 M. — West Point. Take the steam boat for Cats- 

 kill. Leave four students at Newburg, to collect the sapphire, &c. 

 found on the back of the Highland rocks, six miles south of New- 

 burg. 



Saturday, 26,110 M. — Visit Catskill Mountains. Ascend through 

 the vast chasm, called Kaaterskill Clove, and return from the 

 Mountain House down the turnpike. On the east side of the Hud- 

 son, the clay slate variety of argillite, alternating with silicious slate, 

 is the basis rock. This passes into the wacke variety of argillite 

 immediately on the west side of the river. The first graywacke is 

 next in succession ; then the carboniferous limerock becomes the 



alternating with hornblende 



* These facts are from the MS Journal of Prof. Eaton, as far West as Whites- 

 boro ; whence severe sickness compelled him to return home. The remainder is 

 taken from the journals of the Rev. David Brown, Prof. Edgerton, Adj't Prof. 

 Houghton, and from the journals of Messrs. Stevenson, Bement, and other student*. 



t M, means miles from the City of New York. 



Vol. XIX.— No\ 1. 20 



