A 
=” Ria tion of heat, effect of 
-different surfaces on, 668 
‘Aeriform fluids, formation of, 
681 
Animal substances, conducting 
power of, 673 
B 
Bacon on the nature of heat, 
689 
Berard and Delaroche’s experi- 
ments on the capacity of 
gases, 686 
Berard on the invisible rays, 677 
Berthollet on the conducting 
power of gases, 676 
Black on cooling water, 682 
*s theory of latent heat, 
683 
general doctrines of 
heat, 683 
Blagden on the expansion of 
water, 679 
on cooling water, 682 
Boerhaave on the nature of 
heat, 689 
Boiling point of liquids, 682 
Brewster on the conducting 
power of fluids, 676 
on new properties of 
heat, 677 
Cc 
alorimeter described, 685 
Capacity for heat explained, 
685 
Cold, radiation and reflection of, 
explained by Pre- 
vost, 671 
produced by evaporation, 
686 
Combustion 688 
Communication of heat, 672 
Cooling of bodies, 676 
Conducting power of bodies, 
672 
Crawford’s experiments, 685 
Cryophorus described, 686 
Currents, effect of, in cooling 
bodies, 677 
D 
Dalton’s experiments on the ex- 
pansion of gases, 
678 
on cooling water, 
681 
on the elasticity of 
vapour, 682 
\ estimate of the real zero, 
687 
Davy, Sir H. on the sun’s rays, 
691 
Delaroche and Berard’s experi- 
ments on the capacity of 
gases, 686 
Deluc’s experiments on the ex- 
arg of liquids, 
-of glass, 679 
‘of mercury, 680 
Differential thermometer of 
Leslie, 668 
699 
INDEX. 
Diffusion of heat, 610 
Senate 683 
E 
Elasticity of aeriform fluids, 682 
Englefield’s experiments on the 
sun’s rays, 667 
Equilibrium of heat, 671 
Evaporation, 683 
Expansion, 678 
F 
Florentine academicians, expe- 
riments on cold 
by, 670 
on the expansion 
of water, 679 
improve the ther- 
mometer, 680 
Fluids, conducting power of, 
672 
Fordyce’s experiments on the 
weight of heat, 690 
Freezing point, 681 
Friction, heat excited by, 687 
G 
Gadolin’s experiments on the 
real zero, 687 
Galvanic shock excites heat, 
689 
Gases, transmission of heat by, 
676 
expansion of, by heat, 
678 
formation of, 681 
capacity of, for heat, 687 
Gay-Lussac’s experiments on 
the expansion of gases, 678 
Glass, peculiar effects of heat on, 
677 
expansion of, 679 
Guyton’s experiments on the 
expansion of gases, 
678 
pyrometer described, 
681 } 
' H 
Hall, Sir James, experiments, 
681 
Halley improves the thermome- 
ter, 680 
Heat, use of the word, 666 
distinct from light, 667 
properties, 666 
effects, 673 
sources, 688 
nature, 689 
Herschel’s experiments on the 
sun’s rays, 667 
Hooke improves the thermome- 
ter, 680 
Hope on the expansion of wa- 
ter, 679 
I 
Ice, expansion of, 679 
formed by Leslie, 686 
Ignition, 687 
Immateriality of heat; 690 
Ingenhousz’s experiments on 
the conductin wer of me- 
tals, 673 eg 
Irvine’s experiments on the real 
zero, 686 
Latent heat exnined, 688 
Lavoisier and Laplace’s experi- 
ments on the ca- 
‘685 
on the zero, 687 
Le Fevre-Gineau on the Behr, 
sion of water, 679 
Leslie’s differential death 
ter, 668 
experiments on the ra- 
diation of heat, + 
668 
on the cooling of 
bodies, 676 
en the capacity of 
bodies, 685 
on the formation of 
Light distinct from heat, 667 
Liquids, ring of, by heat, 
sahamion of, 681 
ni 
Marcet’s experiments on freez~ 
ing mercury, 686 
Materiality of heat considered, 
690 
Mercury, remarks on the ex~ 
pansion of, 680 
Metals, their conducting power, 
673 
tha expennbr nan ets 
79 
Meyer’s experiments on the ca- 
pacity of woods, 674 
Mirrors, concave, experiments 
with, by Pic- 
tet, 667 
by Leslie, 668 
Murray’s experiments on the 
conducting power of 
fluids, 675 
System of Chemistry 
referred to, 691 
N 
Newton improved the thermo- 
meter, 
°s theorem for ascer- 
taining high tempe- 
ratures, 680 
P 
one a source of heat, 
Pictet’s experiments on the ra- 
diation of heat, 
667 
of cold, 674 
Poisson on the conducting pow- 
er, 674 
Pressure affects evaporation, 
682 
Prevost’s hypothesis on the e- 
quilibrium of heat, 672 
Pyrometers described, 680, 681 
pacitiesof bodies, 
eee ot hea, 667 
ut 
of cold, 670 
Repulsive power of 671 
‘Richmann’s experiments on the 
Rumford’s 's experiments po : 
, radiation of heat, 
on une radiation of cold, 
‘on reg power, 
on oe, a ihe 
_ of Aa 675 
lig 
Santorio savedton the temo 
,, 880 
on the 
j a of 667 
Scheele on radiant heat, 666 
Screens, their effect on radia- 
tion, 669 — 
Sensations of heat and cold, 786 
Smeaton’s experiments on a 
expansion of metals, 679 _ 
Solids, passage of heat chrosigh 
them, 673 
expansion of, 679 
Specific heat explained, 634 
Steam, capacity of, 686 
Sun’s rays, source of heat, 688 
Surfaces, effect of, on radia- 
tion, wate t and reflec- 
tion, 66: 
% 
Sa ea an effect of heat, 
Vegetable substances, conduct- 
ing power ef, 673 
Velocity of the matte of heat, 
671 
Water, e: of, 678 
cnt the freez- 
point, 682 
Watt estimates the latent heat 
in steam, 685 
rg capacity of steam, 
Wedgewood’s pyrometer descri- 
bed, 680 
experiments on ignition, 
687 
Williams’s experiments on the 
freezing of water, 679 
Wollaston’s cryophorus descri- 
bed, 686 
Woods, conducting power of, 
674 
Z 
Zero, experiments on the ¢sti- 
mate of, ey 
J 
