Plants from Alabama,, 61 



though 1 know not that any one has been present in boiste- 

 rous weather to observe it. Near it, is a fragment of stone 

 of the same composition, weighing eight or ten tons, which, 

 doubtless, at some distant period, has fallen from one end 

 of it ; for one of its faces exactly corresponds to a face ex- 

 hibited by the moveable stone, and the latter has a seam in 

 it which may hereafter occasion it to lose another portion. 



Last year, when Mr. P. saw it, there were lying about 

 it, props and levers, which were evidently the instruments 

 of some persons, who had tried in vain to overturn it. For- 

 tunately, there is a projection on each side at the bottom, 

 which will sustain it in its upright position, unless a force be 

 applied sufficient to raise about twenty tons of its weight. 

 No commanding position can be selected so as to see the 

 two points upon which it is poised, on account of the irregu- 

 larities upon the surface of the lower rock, which obstruct 

 the view. 



This rock has been noticed in the neighbourhood for at 

 least six years, but although in an open field, in the imme- 

 diate vicinity of Boston and Cambridge, it has hitherto at- 

 tracted very little attention among the lovers of curiosities. 

 No account of it has been hitherto published, as far as our 

 information extends. 



" These rocks," Mr. W. observes, " are not so rare as 

 has been generally supposed. There was formerly one 

 upon the Salem turnpike road, which was so nicely poised, 

 that a child might move it. There are three at different 

 places in the vicinity of Providence, all still moveable ; 

 also one in Framinghara, Mass, that was a few years since, 

 and probably still is moveable, and one in Foster, R. I. 

 about twenty two miles from Providence." 



BOTANY. 



Art. VII. — Notice of four new species collected in Alahamtt °, 

 by M. C. Leavenworth. 



Acacia Lutea — Inermis, glabra. Foliis bipinnatis; Par- 

 tialibus numerosissimis, lineari-oblongis. Spicis sub- 

 globosis, solitariis. Pedunculis axillaribus, longissimis. 

 Legumine magno, obojato. 



