ii4 Memorial on the upward forces ef Fluids. 
air grew lighter and the atmospheric pressure decreased 7 
when it was also stated by them, that as they approached the 
upper strata of the atmosphere, perhaps occupied by an ethe- 
rial gas, at the altitude ras 70 rods, the highest to whicl: 
men ever have ascended, e the gevlogical crust of ne 
globe, the spirit of life “ia cecuped to be drawn upwards and 
to become evanescent, retaining no recollection, on its return 
to vital air, of what had happened during its lipothymy ; ; and 
when, finally, it had been proved that the laws of gravity va- 
ried in the same body in proportion of its degree of heat or 
cold, as it is aM under the equator and the colder lati- 
tudes towards the poles, by the pendulum, retarded when ren- 
dered specifically lighter and bulky by caloric, or accelera- 
when rendered heavier and contracted by cold.” 
It was a bold undertaking, that of rejecting the Newtonian 
solution, of the retardation of the pendulum under the equator, 
the compression of the poles, and by the crated, force 
ements, by the diurnal rotation of our planet, But 
is an able controversialist, establishes his a te 
neiples moving the universe; one is matter that 
seeks rest, and the other is an element that: incessantly disturbs 
that rest ; should there be one single element in the universe 
which cannot be controled by gravity—gravity cannot be 
said to be an universal law. At any rate, the concluding 
principle of 
remarks on levity, certainly entitle the writer 
to the merit of cons consistency. in his adopted denomination, of 
the upward forces of fluids. 
“ If motion is the result of a pressure impelled on matter 
at rest, it implies that the motion must be effected through 
some portion of space, without which no motion can be 
duced. 80, shall we consider that , 
vacuum, soul we not recognize as the occupant of that 
ates from the sun 
why 
space, caloric latent or sensible, which eman 
with the rays of light ; traverses with nor i: 
Space at an equal eerd 
mes in an instant, 
a force capable of shaki 
it has created it; gives levity te 
