788 / 1042
.
.
II E A
77 6
I~ry
of
I
man, and that the inwud arca of the lef[
,~ntr¡c1e
of his hean is equal[Ofiflcen fquare inches ;
th& multiplied ioto
7+t
fm, give
[350
ellbic
inch~s
of blood, IIIhich preífes on that
ventricl~, \l'h~n
i[ firn
b~gios
tO contralt, a weight equal to
1,.,
pOllnds.
.What the doltor thUI ealculates, from fuppofition,
lIIuh regard to mankind,
h~
altually
experim~nted
up'
on horfes, dogs, fallolV·does,
&c.
by fixing
tub~s,
in
'" '"
"O ..
e v
" e
O "
p..
O
'"
..
.c
u
e
....
~
".c
.. v
.. e
~
....
"
u
.c
u
.:
v
:o
~
U
.
~
e
.... el •
"o .... "
e
"
~
..
"
e
~.c
.-
u v
E
r::
JI
E A
orifices
open~d
io their veins aoo arteries I
b~ obf~r.
\'ing the Ceveral heights, to which the blood rofe io
thde tubes,
as
they lay
00
the ground; aod by mea.
furing Ihe eal"'cllies of Ihe \'eotriclcs of the
h~art
and
orifim of the aneriea. And, that the
r~ader ma~
Ihe
more : eadily
eompar~ th~
faid ellimales
tog~th~r, h~
has glvtn atable of them, ranged io the follo'lling
order.
Sqoare
iDehes.
-
-- -- -
_. -- -- ---- -- - -
·1---...... ' 1
Man
160
Horfe
dI.
2d.
00
(lraiD'
iog.
7 6 1.6,9 0'4187
3.318
56.)5
34.
18
"3-3
17·5
3d. 825
Ox
1600
a
3
9 8
12
52 9 6
10
12·5
86.8,
6'0
76'95 88
113,22 86 0.677
0'369
38 0.912
0.84
righl, left,
Sheep
Doe
5t 9 6 5t 18, 0,172 174-5 20
4·)93 36'56 65 0.094 0.°7°.0 12
4
2
9
0'47 6
0.383
0.246
DOg9
dI.
20.
3d,
4th .
52
o
6 68
7
2
8
4 8
3 3
1.172 0.196
1
0.18,
0,633 0.1l8
0 5 0.[01
144·77 11.9
434
3,7
2·3
1.
85
right. left.
33. 61 97 0.106 0.0410.0
34
0.102 0.0310.009
24
,
130·9 6'48
18
,
130
7.8
19.8
0,07 0,0220.009
12 8 4
120
6.7
11.1
0.061 0.0150,007
HEAT, in phyfiology, one of the feeondary qualities of
bodies, produeed by 6re, and oppofed to cold.
Vader the article
6r~,
we confidered the fon as
the prineiral fooree of heat upon the earth's forfaee,
aod the confines of the earth and atmofphere: with·
out this. all the bodies upon our globe IVould doobt·
lefs grolll rigid, lirelefs, and nxed.
It
is this that
llirs within them. as the maio fpring of their aétions.
Henee vegetatior. and animalization are evidently pro·
moted ; and heoce the ocean and the atmorphere con·
linue in a fluid (late,
Hlat in us is properly a fenfation, excited
by
the
aétion of 6re; or it is the eífeét of 6re on our organs
of feeling. Hence il follows, lhat what we call heat
il a particular idea or modificalion of our oIVn mind,
and not any thing exifiing in that forOl in the body
Ihal oceafions il. Bea[, foys Mr Locke, i, no more
in the fi,e Ihot buros the finger, than pain is in the
Ilcedlc that pricl:s it. In cffeét, hcat in the hody that
gives it, is only motion; and in Ihe mind, ooly a par–
ticular idea,
Hm in the hot body,
~ccording
to 'S Gravefande,
is an agiration of the parts of the body, made by means
of the fire cODtained iDil:
by
foch an agil3tion amo·
tion is prodoced in oor bodies, which excites the idea
of heat in our mind; fo that beat in refpelt of us is
nothing but tbat idea, and in the hOI body nothiog bot
motion.
If
fuch mouon expef the 6re in righl lines,
it gives
u~
the idea of lighl; if in a varioos and ine·
gulár motion, only hm,
Heat, with refpeét to our fenfolions, or the e/Fea
producrd on
I1S
by a hot body, is eflimatcd
by
its rel,·
tion to Ihe organof feeling; no objeét appearing to' he
hot oun!efs its hear exceed Ihat of
0111
body. Whence
the fame thinS tO dilferent perfons, Or at
difler~nt
limes to rhe fame perron, (hall appe\ r both hot ano
cold. The degree of hm is meafored
by
the txpan·
fiun of the air, or rpirit iD
th~
thcrmomcter.
It