The works of Francis Bacon, lord chancellor of England.

CENT. VIII. NATURAL HISTORY. 95
and lemons, or sugar and citrons, or sugar and issueth, chiefly, out of the parts that are less
violets, and some other flowers; and some mix- fleshy, and more dry; as the forehead and breast.
ture of amber for the more delicate persons: and 709. Men sweat more in sleep than waking;
those they dissolve in water, and therefore make and yet sleep doth rather stay other fluxions, than
their drink, because they are forbidden wine by cause them; as rheums, looseness of the body,
their law. But I do much marvel, that no Eng- &c. The cause is, for that in sleep the heat and
lishman, or Dutchman, or German, doth set up spirits do naturally move inwards, and there rest.
brewinr in Constantinople; considering they But when they are collected once within, the heat
have such quantity of barley. For as for the becometh more violent and irritate; and thereby
general sort of men, frugality may be the cause expelleth sweat.
of drinking water: for that it is no small saving 710. Cold sweats are, many times, mortal, and
to pay nothing for one's drink: but the better near death: and always ill, and suspected: as in
sort might well be at the cost. And yet I wonder great fears, hypochondriacal passions, &c. The
the less at it, because I see France, Italy, or cause is, for that cold sweats come by arelaxation
Spain, have not taken into use beer or ale; or forsaking of the spirits, whereby the moisture
which, perhaps, if they did, would better both of the body, which heat did keep firm in the parts,
their healths and their complexions. It is likely severeth and issueth out.
it would be matter of great gain to any that 711. In those diseases which cannot be disshould begin it in Turkey. charged by sweat, sweat is ill, and rather to be
stayed; as in diseases of the lungs, and fluxes of
Experiments in consort touching sweat. the belly: but in those diseases which are expelled
706. In bathing in hot water, sweat, neverthe- by sweat, it easeth and lighteneth; as in agues,
less, cometh not in the parts under the water. pestilences, &c. The cause is, for that sweat in
The cause is; first, for that sweat is a kind of the latter sort is partly critical, and sendeth forth
colliquation, and that kind of colliquation is not the matter that offendeth: but in the former, it
made either by an over-dry heat, or an over-moist either proceedeth from the labour of the spirits,
heat: for over-moisture doth somewhat extin- which showeth them oppressed; or from motion
guish the heat, as we see that even hot water of consent, when nature, not able to expel the
quencheth fire; and over-dry heat shutteth the disease where it is seated, moveth to an expulsion
pores: and therefore men will sooner sweat co- indifferent over all the body.
vered before the sun or fire, than if they stood
naked: and earthen bottles, filled with hot water, EYxperiment solitary touching the glow-worm.
do provoke in bed a sweat more daintily than 712. The nature of the glow-worm is hitherto
brick-bats hot. Secondly, hot water doth cause not well observed. Thus much we see: that
evaporation from the skin; so as it spendeth the they breed chiefly in the hottest months of summatter in those parts under the water, before it mer; and that they breed not in champain, but in
issueth in sweat. Again, sweat cometh more bushes and hedges. Whereby it may be conplentifully, if the heat be increased by degrees, ceived, that the spirit of them is very fine, and not
than if it be greatest at first, or equal. The to be refined but by summer heats: and again,
cause is, for that the pores are better opened by that by reason of the fineness, it doth easily exa gentle heat, than by a more violent; and by hale. In Italy, and the hotter countries, there is
their opening, the sweat issueth more abundantly. a fly they call lucciole, that shineth as the glowAnd therefore physicians may do well when they worm doth; and it may be is the flying glowprovoke sweat in bed by bottles, with a decoction worm. But that fly is chiefly upon fens and
of sudorific herbs in hot water, to make two de- marshes. But yet the two former observagrees of heat in the bottles; and to lay in the tions hold;. for they are not seen but in the heat
bed the less heated first, and after half an hour, of summer; and sedge, or other green of the
the more heated. fens, give as good shade as bushes. It may be
707. Sweat is salt in taste; the cause is, for the glow-worms of the cold countries ripen not
that that part of the nourishment which is fresh so far as to be winged.
and sweet, turneth into blood and flesh: and the
sweat is only that part which is separate and ex- Experiments in consort touching the impressions
cerned. Blood also raw hath some saltness more which thepassions of the mind make ucpon the body.
than flesh: because the assimilation into flesh is 713. The passions of the mind work upon the
not without a little and subtile excretion from the body the impressions following. Fear causeth
blood. paleness, trembling, the standing of the hair up
708. Sweat cometh forth more out of the up- right, starting, and shrieking. The paleness is
per parts of the body than the lower; the reason caused, for that the blood runneth inward to sueis, because those parts are more replenished with cour the heart. The trembling is caused, for thatu
spirits; and the spirits are they that put forth through the flight of the spirits inward, the outsweat: besides, they are less fleshy,and sweat ward parts are destituted, and not sustained.