Lib. V. Of the Advancement of Learning. 14^ 



itv/crcj by a commixture, and communication of Hajes, inflame one 

 tlie other. For although the raiionall wa)^ by an artificial Orgnnum. 

 prom ife far greater m:irtersi yet nevcrthelefs x.\\\s fag^city by ittnate 

 experience, may in the mean projed and (batter to the benefit of man 

 (as miffive Donatives amongft the Ancients) many rudiments to know- 

 ledge, which may be had at hand. There re>ndi>ts the tranjlation of a 

 Part of Art into another part divcrje from it, which little differs from 

 the Tranfldtion of Art into Art : But becaufe many Arts exercife great 

 fpacen, lb as they may very well fuftain a TranjUtion within the limits 

 of their own operations ^ we thought good to annex this kind ofTran- 

 flation'-) fpecially feeing it is in fome Arts of very great import. For 

 it maketh much to the advancement and amplification of the Art of 

 Phyficki if the Experiments of that part of Medicine concerning the 

 Cures of Difeafes, be transfer'd to thofe Parrs concerning the Regiment 

 of Health, zndthe Prolongation of Life. For if fome excellent Opiate 

 be of that force and virtue, as to reprels and affwage the raging infla- 

 mationofthe fpirits, ina peftilential Fever 5 letno manqueftion, but 

 that a like receipt by a due proportiorfed Dofe made familiar, may in 

 fome degree put back and retard inflamation, which grows and creeps 

 upon us by age. T^us much for the Tranflation of Experiments. 



^ Inverfton of Experiment is, when the contrary to that which is by 

 Experiment manifed, is tried : For example, Heat by Glaffes is inten- 

 ded J is cold fo too ? So Heat when it diffufeth it (elf is yet rather car- 

 ried upwards : Is cold likewifein diffufing it felf carried rather down- 

 wards ? For inltance, take a fmall Bar of Iron, and heat it on one end, 

 thenfet it upright, (that end which is heated placed downwards) lay- 

 ing your hand upon the end, it will prefenrly burn your hand j but 

 nowinvcrfe theBar, placing the hot part upwards, and your hand up- 

 on the part which is downwards, and you (hall not feel the heat (b foon 

 by many Pulfes; Whether or no, if the Bar was heated all over, and 

 one end fhould be raoiftncd with fiiow, or with a fponge dipt in cold 

 water 5 if the (now or fponge were applied to the part which is upward, 

 would (I fay) the coldfooner pierce downward, than if thefnow or 

 fponge placed at the lower end, the cold would (hoot upward. So the 

 Beams of the Sun rebound from a white upon a black are congregate: 

 Whether are (hadows alio difperled upon white,and united upon black? 

 The Experiment we (ee made in a dark room, the light being let in 

 thorow a narrow chink only, where the Images of things which are 

 without, arc taken upon white i-'aper, not upon black. So a vein is 

 opened in the fore-head for the Megrim, orHeadach. Mu(t al(b the 

 Hemicrane be fcarified for theSoda'-, or the pain of the head in gene- 

 ral ? So much for the Inverfion of Experiment. 



§ CompuKiim of Experiment, is when Experiment is urged, and exten- 

 ded to annihilation, or privation of the vertue. For in other kinds of 

 hunting, the game is only taken, but in this kill'd. Example o^Com- 

 fulJion\s thisi The LoacJjione draws Iron, inforce therefore the Iron, 

 or vex the Loadftone, 'fo as the virtue ofattra(3;ion be ftifled or expir'd: 

 As, fuppofe theLaad(tone were burnt or macerate in ffrong waters, 

 yvhether will it forego, or abate its virtue? Contrarywife,//" /2ec/ or 

 Iron be reduced into Croc urn A/ariis, or into prepar'd ffeel, as they call 

 it 3 or be diliblved in Acju.i Fortis j will the Loaditone (till allure them? 



Again, 



