84 ANATOMY AND MORPHOLOGY 



witli that of the parenchyma of the count of the root. (If only Grew had 



seed. And according to the best obser- a good microscope!) 



vation I have vet made, 'tis sometimes That the radicle being impregnate, 



existent in its radicle, in which, the two and shot into the moulds, the contigu- 



main branches of the lobes both meet- ous moisture, by the cortical body, 



ing, and being osculated together, are being a body laxe and spongy, is easily 



thus disposed into one round and tubu- admitted: yet not all indiscriminately, 



lar trunk, and so environing part of the but that which is more adapted to 



parenchyma, make thereof a pith, as pass through the surrounding cuticle, 



in either the radicle, or the young root Which transient sap, though it thus 



of the great bean or lupine, may I becomes fine, yet is not simple; but a 



think, be well seen. mixture of particles, both in respect of 



lire pores of the pith, as those of those originally in the root, and 



the cortical bodv, are extended both by amongst themselves, somewhat hetero- 



the breadth and length of the root, geneous. And being lodg'd in the cor- 



much alike; yet are they more or less of tide body moderately laxe, and of a 



a greater size than those of the cortical circular form; the effect will be an 



body. earlier fermentation. The sap ferment- 



The proportions of the pith, are ing, a separation of parts will follow; 



various: in trees small, in herbs, gen- some whereof will be impacted to the 



erally, very fair, in some making by circumference of the cortical body, 



far the greatest part of the root, as in whence the cuticle becomes a skin, 



a turnip. Whereupon the sap passing into the 



In the roots of vev)' many plants, as cortical body, through this, is still more 



turnips, carrots etc. the lignous body, finely filtered. With which sap, the cor- 



besides its utmost main ring, hath tical body being dilated as far as its 



divers of its osculated fibres dispersed tone, without a solution of continuity, 



throughout the body of the pith; will bear, and the supply of the sap still 



sometimes all alike, and sometimes renewed: the purest part as most apt 



more especially in, or near, its center; and ready, recedes, with its due tinc- 



which fibres, as thev run toward the tures, from the said cortical body, to 



top of the root, still declining the cen- all parts of the lignous, both those 



ter, at last collaterally strike into its mixed with the barque, and those lying 



circumference; either all of them, or within it. Which lignous body likewise 



some few, keeping the center still. Of super-inducing its own proper tine- 



these principally, the succulent part of tures into the said sap, 'tis now to its 



the lignous body of the trunk is often highest preparation wrought up, and 



originated. becomes the vegetative ros or cambium. 



Some of these pith fibres, although That the sap hath a double, and so 



they are so exceedingly slender, yet in a circular motion, in the root, is prob- 



some roots, they are visibly concave, able, from the proper motion of the 



each of them, in their several cavities root, and from its office. From its mo- 



also embosoming a very small pith, the tion, which is descent, from its office, 



sight whereof, the root being cut tra- which is to feed the trunk for which, 



verse, and laid in a window for a day the sap must also, in some part or 



or two to dry, may be without glasses other, have a more especial motion of 



obtained. And this is the general ac- ascent. 



