TEMPERAMENTS, views of Hippocrates, 987; of Boerhaave and
Richerand, 988; of Bacon and Cullen, 990; of Dr. J. Gregory,
991; of Dr. Thomas, 991; of Dr. Caldwell, 922; comments
on their theories, 992, 998; illustrations of, 998, 1004;
origin of, 996; division of into dynamic and adynamic, 996;
rationale of power, 1005, 1006; views of Dr. Prichard, 1009;
influenced by climate, 1009; erroneous theory of Menzel,
1009, 1010.
TEMPERATURE, of different animals, 554, 557; of Polar Asia,
and America, 695; of Tartary, 596; of middle and southern
Asia, 597; of Europe and the United States, 699, 699; of the
torrid zone, 700, 702; its influence on respiration, 709, 715,
832; on the character of the human race, 702, 705, 720, 757;
higher in man in the tropical than in the middle latitudes, 565;
higher during summer than in any other season, 568; and ·
higher on first awaking in the morning than at any other time
of day, 568; mean of different years, 811.
THALES, his doctrine of a first cause, 469.
THEOLOGIANS, live longer than any other class in Prussia, 778.
THILORIER solidifies carbonic acid, 143.
THOMAS, Dr., his new classification of temperaments,
fects of his theory, 993, 996, inclusive.
THOMSON, Dr. John, his thermotic treatment of inflammation,
1094; on the specific heat of atoms, 82, 83; on the specific
gravity of carbon vapour, 57; maintains that all atomic weights
are even multiples of the lowest, 53, 58; on the absolute
weight of the atom of lead, 72; on the caloric evolved during
the combustion of hydrogen, 76; on the constitution of the
atmosphere, 116; his reason why some bodies feel warmer
than others, 191, note; on atmospheric electricity, 288; his
theory of two electric fluids, 425; Tornados, theory of, 330,
347.
THORAX, size of, a measure of vital energy in temperate climates,
572, and 578.
TIEDEMANN, on the final cause of vital force, 508; refers it to ner-
vous influence, 593; on the relative size of the brain in men
and women, 577; found the brain of idiots very small, 598;
on the cause of the heart's action, 614; his electrical theory of
secretion, 670.
TONICS, their mode of operation, 985.
TORTOISE, brain of extracted by Redi, 599, note.
TORNADOS, theory of, 330, 347.
TOWNE, Mr., on incubation, 638,
TRANCE, theory and treatment of, 961, 962.
TREVIRANUS, on the relative quantities of oxygen consumed by
different animals, 563; smears insects over with varnish, 604.
TRINITY, the Pythagorean, 471; that of the Hindoos, 857, note;
the Platonic, 477; logical demonstration of by Aristotle, 857,
TULLOCH, Major, his reports, 778, 780, 781; on cutaneous dis-
eases, 804, note.
TYPHUS, more prevalent during winter than summer, 821, 1061
most fatal in crowded and confined dwellings, 826; symptoms
of, 826; often generated by exposure to cold without malaria,
1062; treatment of, 1062, note.
ULCERS, treatment of, 1098.
UNITY, of all physical causation, 13, 17, 279, passim; of orga-
nization, 758, 759; of fever, 810; of all diseases, 1052, note.
UNIVERSE, a knowledge of the physical and moral laws of, the
true remedy for physical and moral evil, 861.
VACUUM, denied by Aristotle, 34; asserted by Newton, 35, note.
disproved by the Author, 36, 278.
VALLANCY, General, on the affinities of ancient languages, 735;
on the ancient Celtic language of Ireland, 736.
VAN HELMONT, his theory of digestion, 625; thought the art of
medicine a mere juggle, 828; his views of the Archeus, 489.
VANS KENEDY, on the number of Sanscrit words found in the
Persian, Greek, Latin, German and English languages, 735.
VAPOUR, atmospheric, elastic force of, at different temperatures,
289, 290; the source of lightning, 298, 300, 301, 304.
VARRO, on the etymology of the Latin word aurum, 737, note;
on the Egyptian Jove, 740.
VEGETATION, how modified by climate and season, 46, 694; re-
garded as a natural thermometer, on a grand scale, 46, 694.
VELOCITY, of the heavenly bodies, 32.
VENESECTION, should never be employed in health, and rarely in
disease, 1097; often causes effusion, dropsy, delirium, para-
lysis, and convulsions, 1097.
VENUS, observations of Shröeter on the height of her mountains, 26.
VERA Causa, essential character of, 39.
VESPASIAN, longevity of the Romans during his reign, 765.
VESTA, a mystical personation of the sacred fire, 2, 482.
VIBORG, applies prussic acid to the brain of a horse, 967.
VIRGIL, his philosophy, 482; on the æther, 741.
VIS INERTIE, a philosophical fiction, 278; identical with Vis
insita, 35.
VIX MEDICATRIX NATURE, in what it consists, 687, 1068, 1076;
cures all diseases, 1067; how misunderstood by Parry and
others, 1067, to 1071; the principle of life itself, 1076.
VOLCANOS, their geographical distribution, 22; their relative
number in different latitudes, 22; the great laboratories of the
earth, 22, note; irruptions of, described by Scrope, and Sir
W. Hamilton, 398; of Cosiguina, 399; two hundred situated
on dry land within the vicinity of the ocean, 400; submarine,
400, 401; numerous in South America, 403; extinct in
North America, 403; not owing to a central fire, 407; num-
ber of irruptions throughout the earth in a country, 410; great
numbers of, beneath the sea, 415; indispensable to the well-
being of our planet, 416.
VOLKMAN, his experiments on frogs, 599.
VOLNEY, on Egyptian symbols, 743, note.
VOLTA, his theory of atmospheric electricity, 305; his theory of
the pile, 372.
VOLTAIRE on the cause of animal motion, 458; on the varieties
of mankind, 720.
VOLUMES, theory of, 56, 70; their relations to atomic weights,
62, 64; how connected with caloric, 65, 66.
WAGNER, on incubation, 639.
WASHINGTON, General, the cause of his death, 801, note.
WATER, its composition and importance, 79; the different crys-
talline forms which it assumes, 93, 94.
WATER-SPOUTS, 330; observed by Captain Lawrence, 334; des-
cribed by Dr. Franklin, 334.
WEDEMEYER, finds the capillary circulation retarded by injections
of alcohol and vinegar, 621, note; applies Prussic acid to the
brain of a horse, 967.
WELLS, Dr., on the radiating power of different bodies, 191; his
theory of dew, 356.
WHALE, size of its brain, 596; peculiarity of its organization,
597, note; its temperature and blanket of fat, 889.
WHEWELL, Rev. W. on the present state of knowledge in regard
to heat, preface, p. 7; on our ignorance of natural laws, 196,
197, 506; on the attraction of masses, 271, on Newton's first
law of motion, 36, note, 276; on the vacuum, 37; on the
luminous æther, 37, note; on the nervous fluid, 600, note;
on prospects of the future, 624.
WICKSTEAD, Thomas, on the steam power generated from burning
100 lbs. of coal, 675.
WILFORD, on pulsations of the heart of the boa, 618, note.
WILLIS, his theory of the nervous system, 585.
WILSON, Dr., his treatment of typhus, 1062, note.
WINDS, theory of, 20, 21, 321, 322; promote evaporation, 292;
westerly in the higher latitudes, 327; westerly, moderate the
climate of Europe and America, 695, note.
WOLLASTON, on the chemical effects of light, 102; his theory of
sea-sickness, 964.
WOODCOCK, Elizabeth, her long confinement under a bank of snow,
838.
YEAR, great astronomical, 29.
YOUATT, Mr., his experiments on hydrophobia, 1027.
YAH, primitive signification of, among the ancients, 2.
YOUPITER, the genetic fire that embraces and sustains the uni-
verse, 741.
ZENO, regarded fire as the animating principle, or soul of nature,
ZONES, climatic divisions of the earth, 693-94.
ZOE, the Greek word for life, and its etymology, 736.
ZOON, an Egyptian and Phoenician name of the sun, 736.
C. WHITTINGHAM, TOOKS COURT, CHANCERY LANE.
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