154 Miscellaneous Notices, &c. 
quantities absorbed by the earth? Do they keep travelling 
on to the center, and thus become the source of volcanic pow- 
er, and of the disturbing forces which have effected the ge- 
ological relations of this planet. 
When the sun goes down, animals feel an inclination to 
sleep, when light returns they awake, and have an inclina- 
tionto move. Is it light which operates thus upon animals, 
by giving them an additional impulse? Is the inclination 
to sleep caused by abstraction of the cause of motion? An- 
imal masses are distinguished from all others, by possessing 
a principle with the faculty of voluntary motion. ben it 
determines to move, motion commences; when it determines 
to stop, motion ceases. : 
o we gain any thing by asserting that planetary bodies 
are projected in right lines? Would it not be as reasonable 
to assert that they have an inherent motive power, directing 
them in right lines ? 
Is it unreasonable to suppose motion to be the natural 
state of matter; and rest to be its opposite state, or the 
equilibrium of motion produced by gravity? Framanp. 
Arr, XVIUI.—Facts relating to Ohio and Mexico, 
I. Miscellaneous Notices of Rocks and Minerals in the State 
of Ohio; by Dr. S. P. Hitpreta—in a letter to the Editor, 
dated May 13th, 1828. 
1. Bowlder stones of primitive rocks. 
stead of the mica—Trap in the form of fine grained green- 
stone—Hornblende slate and crystalized hornblende rock. 
* See Vol. III, p.49—Vol. XIII, p. 39—Vol. XIV, p- 291. 
