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Show 24 Erpcrimmft dt'lflfl,‘15.!fd/ftlg' 11ml rcd Vat/'15 do not absorb. Experiments drmmus/z‘aling that red Vciizi‘ do not absorb. iii colour; nor (lid the serum of the same. blood, after it had coagulated, shew the least tinge ofhlue. 5thi One cannot consider milk, and starch dissolved in water, as viscid (Boerhaave) sententia recedere." He also says, that where experiments are directly opposite, on the same subject, he was wont to believe those which affirmed any fact, rather than those which denied it; and his reason for doing so is, " facilius enim experimento suecessus a casu aliquo negatur: suecessu vero demonstrate non facile causa alia cjus eventus, invenitur, fluids, not easily absorbed by veins; for the lacteals absorbed them very readily. In Kaaw Bocrliaave‘s experiirients, the veins, however, absorbed water. Here too a portion of intestine, emptied previouslv, was filled with warm water, the trunk of the arteries was tied, Vet the corresponding veins never became fuller, nor was there the least appearance of the water havin-r got into the veins. a I 6th. Ihe eveinight be deceived; the smell, perhaps, might detect what 'iflfl eluded the other sense: similar experiments were therefore made, in the intestines of other animals, with a solution of mush in water. Alter a proa per period, the venous blood was received into a Cup, [1N SflIi‘llm, from an opening made in the trunk of the veins; but it discovered not the least smell ol mush! ./,etli.' ‘l\ litlc pOitions of thtmintestines \veie lull of the starch, coloured witn ‘ iiitnuo H O , w "aim ' milk i ‘ l'IlJ-kLKCd ' \tts , by the trunk of the arteries ' ' it ‘ red till turner n the veins, and llilslliJCCthn was continued for some considerable time: thisniill' It, r'LCLH V "((1 ft ' om an opening ' ' the trunlt ol‘ the veins, in ‘ shewed 25 see in the quam ipsa partium fabrica." How far he reasons well, we shall transudasequel.-Leiberl4un's experiments were on the dead body, where tion takes place, and are therefore inconclusive. As to Boerhaave‘s observations, already mentioned, it is not true, that the blood of these. veins does not coagulate: in experiments made on living same vein animals, whose vena portarum is in every respect similar to the I conceive in the human body, I have always seen it coagulate; nor can Again, what how this error should have become so generally believed. prevent their could these veins absorb from the intestines, which would effect; the lymph blood from coagulating? The chyle could have no such and would ra- could not do this; these are coagulating fluids themselves, ther increase than diminish the crassamentum oltlie blood. The arguments undergo a cir- in Favour ol' the bile being absorbed by the veins, in order to it is culation through the liver, are weak and inconclusive. The quantity, not the least tinge olblue. ' 8th. Portions of the intestines were emptied, and by ligatures separated be decomposed said, is very Considerable: "'liat becomes ofit? It may of the cliyle; or, in the intestines, and may then enter into the composition from the general canal; milk was injected bv the trunlt of the veins of the it may be contained in, or form a part ofthe feces-The serum blood of the veins of the intestines, is not bitter to the taste, is neither usually tinged green, brown, or yellow, nor capable of tinging liucn so, as the urine does injaunrlice, when we know that it certainly contains bile. which lit‘l'cvl‘l'clVC no valves, till it returned by the arterie‘ : the intestines )'tfl{‘l i('1 continuation of this injection for a considerable time , were, on examination, i) 1 found quite empty. '9tli. After one of the animals was dead, the mesenter ic v eins were inflated \\lli"' {11am which, though a4 wry viseitl fluid, ' i found ' \rav into the cavity its ()liC . l ntt l'."~ stincs, though niillt, injected through the same i veins, while the annna was alive, could not be forced into the same cavitv I‘m" These a V-experime 1‘ _ nts ‘ appear to. me . perfectly conclusive. ' *i'allcr savs of , . itcntui suatlere, ab intestinis in lactca \asa patul'un viaiiics‘ t1 non { )crn' idc"insetias .. ' nitscntc .. iitas; ' ' ' and a little ' after adds, i " Multun ( ii tribuo h 1" C , . L ii‘i"(\llikll "liitlitls ‘ ' , in i (pillJLts ' candor cum industri ' a eonjunnatur Sed on rarii a nt l‘ttlill"l'( . l<il . aittuinc ' ‘ a ' nt'it li'ibei t nus' tit non possnn " a Dpracc'p i . toris (Boerhaave) )at; a" . ta .m I‘m» Av- .wflflw‘mwmw. ,, » , on the superior size The next argument adduced by Bocrhaave, is founded veins so much of these veins to their corresponding arteries‘W'hy are the are not even to they when arteries, the of size the triple or double, larger, of this goes 0le, by SCcarry back the whole blood ol'the arteries; for part that the appearance cretion, into the intestines:3 To this it may be replied, relative size in ofthe veins in the dead body proves nothing respecting their in accumulated then is body the of blood hole \\ the almost the living body: but that also them; they contain not only their own proportion of blood, which was contained in the arteries. E In the next place, the blood in the veins, |