332 PHILOSOPHICAL TRANSACTIONS. [aNNO l66g. 



In chap. 4 he gives an account of the rise, progress and use of the invention 

 of transfusing blood out of one animal into another : though in the history of 

 this particular he commits (I know not by what oversight) a mistake, in relating 

 that M. Denys (called by him Dionysius) arrogates to himself that invention, 

 whereas he only tells us that some of his nation do so. Besides which we must 

 point out another mistake in this part of the book, viz. that the author taking 

 occasion to speak of the Philos. Transactions, calls them the transactions of the 

 Society ; which certainly he would not have done if he had only taken notice of 

 what is said in N° 1 1 of the same. 



In chap. 5 he treats of the chyle, and its change into blood ; where he ob- 

 serves, that nothing passes from the spleen through the vas breve into the 

 stomach ; but that the ferment of the stomach proceeds immediately from the 

 blood itself: Explaining further, how the separation of the chyle is performed 

 in the intestines, and how the same, to facilitate the more its passage, is diluted 

 and refined by the juice of the pancreas secreted into the duodenum : Render- 

 ing also the cause why all the glands in the abdomen, and in all the lower parts 

 of the body, deposit their lymph or juice into the common great receptacle of 

 the chyle, and why that receptacle is placed between the tendons of the dia- 

 phragm; as also why those channels which convey the chyle into the subclavian 

 vein are double. To which he adds, that all the chyle is by the ductus thora- 

 cicus alone transmitted into the blood and heart, which he proves by several 

 considerable experiments, with some reflections on the experiment alleged by 

 Bils to prove the contrary. All which he concludes by showing the degrees and 

 ways of change, whereby the chyle is at last converted into blood ; and how it 

 serves for the nourishment of the several parts of the body. 



The whole receives a singular elucidation and ornament by the accurate 

 figures annexed. 



Additional Observations on Vegetables. By Dr. Tonge. N°46, p. 913. 



For completing the experiment on sap, and to discover whether it ascends 

 more or less in the pricked circles of the body, than in those between the 

 body and bark ; let the tree, exhausted of all its sap the day before, be first 

 pierced with an auger, only through the bark, and the quantity of sap it yields 

 exactly measured and weighed : then at the same time let another hole be bored 

 into the body of the tree about 1-i- inch deep, and so round on every side of the 

 same tree, and of others of the same sort, (all exhausted of their sap the day 

 before) some deeper and some shallower, with a good large auger ; and one quite 

 through sloping. From this experiment, after divers and various trials, may 



