Hand-Gouty persons.
As for the observation of Lemnius an eminent Physitian, concerning the Gout; however it happened in his Country, we may observe it otherwise in ours; that is, that chiragrical persons do suffer in this Finger as well as in the rest, and sometimes first of all, and sometimes no where else. And for the mixing up medicines herewith; it is rather an argument of opinion, then any considerable effect; and we as highly conceive of the practice in Diapalma, that is, in the making of that plaister, to stir it with the stick of a Palm.
[CHAPTER V]
Of the right and left Hand.
It is also suspicious, and not with that certainty to be received, what is generally believed concerning the right and left hand; that Men naturally make use of the right, and that the use of the other is a digression or aberration from that way which nature generally intendeth. We do not deny that almost all Nations have used this hand, and ascribed a preheminence thereto: hereof a remarkable passage there is in the 48. of Genesis, And Joseph took them both, Ephraim in his right hand towards Israels left hand, and Manasses in his left hand towards Israels right hand, and Israel stretched out his right hand and laid it upon Ephraims head, who was the younger, and his left hand upon Manasses head, guiding his hands wittingly, for Manasses was the first-born; and when Joseph saw that his father laid his right hand upon the head of Ephraim, it displeased him, and he held up his fathers hand to remove it from Ephraims head unto Manasses head, and Joseph said, Not so my father, for this is the first-born, put thy right hand upon his head: The like appeareth from the ordinance of Moses in the consecration of their Priests, Then shalt thou kill the Ram, and take of his blood, and put it upon the tip of the right ear of Aaron, and upon the tip of the right ear of his sons, and upon the thumb of the right hand, and upon the great toe of the right foot, and sprinkle the blood on the Altar round about. That the Persians were wont herewith to plight their faith, is testified by Diodorus: That the Greeks and Romans made use hereof, beside the testimony of divers Authors, is evident from their custom of discumbency at their meals, which was upon their left side, for so their right hand was free, and ready for all service. As also from the conjunction of the right hands and not the left observable in the Roman medals of concord. Nor was this only in use with divers Nations of Men, but was the custom of whole Nations of Women; as is deduceable from the Amazones in the amputation of their right breast, whereby they had the freer use of their bow. All which do seem to declare a natural preferment of the one unto motion before the other; wherein notwithstanding in submission to future information, we are unsatisfied unto great dubitation.
For first, if there were a determinate prepotency in the right, and such as ariseth from a constant root in nature, we might expect the same in other animals, whose parts are also differenced by dextrality; wherein notwithstanding we cannot discover a distinct and complying account; for we find not that Horses, Buls, or Mules, are generally stronger on this side. As for Animals whose forelegs more sensibly supply the use of arms, they hold, if not an equality in both, a prevalency oft-times in the other, as Squirrels, Apes, and Monkies; the same is also discernable in Parrets, who feed themselves more commonly by the left-leg, and Men observe that the Eye of a Tumbler is biggest, not constantly in one, but in the bearing side.
Whence the dextral activity in men proceeds.
That there is also in Men a natural prepotency in the right, we cannot with constancy affirm, if we make observation in children; who permitted the freedom of both, do oft-times confine unto the left, and are not without great difficulty restrained from it. And therefore this prevalency is either uncertainly placed in the laterality, or custom determines its differency. Which is the resolution of Aristotle in that Problem, which enquires why the right side being better then the left, is equal in the senses? because, saith he, the right and left do differ by use and custom, which have no place in the senses. For right and left as parts inservient unto the motive faculty, are differenced by degrees from use and assuefaction, according whereto the one grows stronger and oft-times bigger then the other. But in the senses it is otherwise; for they acquire not their perfection by use or custom, but at the first we equally hear and see with one Eye, as well as with another. And therefore, were this indifferency permitted, or did not constitution, but nature determine dextrality, there would be many more Scevolaes then are delivered in story; nor needed we to draw examples of the left, from the sons of the right hand;Benjamin filius dextræ. as we read of seven thousand in the Army of the Benjamites. True it is, that although there be an indifferency in either, or a prevalency indifferent in one, yet is it most reasonable for uniformity, and sundry respective uses, that Men should apply themselves to the constant use of one; for there will otherwise arise anomalous disturbances in manual actions, not only in civil and artificial, but also in Military affairs, and the several actions of war.
Secondly, The grounds and reasons alleadged for the right, are not satisfactory, and afford no rest in their decision. Scaliger finding a defect in the reason of Aristotle, introduceth one of no less deficiency himself; Ratio materialis (saith he) sanguinis crassitudo simul et multitudo; that is, the reason of the vigour of this side, is the crassitude and plenty of blood; but this is not sufficient; for the crassitude or thickness of blood affordeth no reason why one arm should be enabled before the other, and the plenty thereof, why both not enabled equally. Fallopius is of another conceit, deducing the reason from the Azygos or vena sine pari, a large and considerable vein arising out of the cava or hollow vein, before it enters the right ventricle of the Heart, and placed only in the right side. But neither is this perswasory; for the Azygos communicates no branches unto the arms or legs on either side, but disperseth into the Ribs on both, and in its descent doth furnish the left Emulgent with one vein, and the first vein of the loins on the right side with another; which manner of derivation doth not confer a peculiar addition unto either. Cælius Rodiginus undertaking to give a reason of Ambidexters and Left-handed Men, delivereth a third opinion: Men, saith he, are Ambidexters, and use both Hands alike, when the heat of the Heart doth plentifully disperse into the left side, and that of the Liver into the right, and the spleen be also much dilated; but Men are Left-handed when ever it happeneth that the Heart and Liver are seated on the left-side; or when the Liver is on the right side, yet so obducted and covered with thick skins, that it cannot diffuse its vertue into the right. Which reasons are no way satisfactory; for herein the spleen is injustly introduced to invigorate the sinister side, which being dilated it would rather infirm and debilitate. As for any tunicles or skins which should hinder the Liver from enabling dextral parts; we must not conceive it diffuseth its vertue by meer irradiation, but by its veins and proper vessels, which common skins and teguments cannot impede. And for the seat of the Heart and Liver in one side, whereby Men become Left-handed, it happeneth too rarely to countenance an effect so common; for the seat of the Liver on the left side is monstrous, and rarely to be met with in the observations of Physitians. Others not considering ambidextrous and Left-handed Men, do totally submit unto the efficacy of the Liver; which though seated on the right side, yet by the subclavian division doth equidistantly communicate its activity unto either Arm; nor will it salve the doubts of observation; for many are Right-handed whose Livers are weakly constituted, and many use the left, in whom that part is strongest; and we observe in Apes, and other animals, whose Liver is in the right, no regular prevalence therein.