VOL. XL.] PHILOSOPHICAL TRANSACTIONS. 235 



person, during 14 years indisposition, was certainly owing to the soundness of 

 all the viscera, and an almost sufficient secretion and excretion of bile by the 

 ductus hepaticus, into the choledochus communis, whose cavity and passage 

 into the duodenum was large and open, which could not have been and have 

 continued, without a continual and proportional flux of bile through it : for it 

 is well known, that as soon as the fluids cease to flow through their natural 

 ducts, their sides soon collapse, coalesce, and at last totally shut up. Thus the 

 uraclius, and canalis arteriosus Botalli in the foetus, shut up totally soon after 

 the birth ; and Mr. Amyand and Dr. S. have seen one of the ureters totally 

 coalesced and shut up, for want of a fluid from the kidney, which had secreted 

 no urine for some time, having become a cystis, filled with a thick white pulta- 

 ceous matter, nearly of a cretaceous consistence. 



Therefore, as the cystic duct was found obliterated, and the choledochus 

 communis large and open, it is plain that no bile had for some time flowed 

 through the former, and that there was a constant supply from the hepatic duct 

 to the latter, for the uses of the animal economy ; until the wound or rupture 

 of the gall-bladder, gradually abating its current by that channel, at last stopped 

 it quite, and put an end to life in a few days after. 



The apparent Times of the Immersions and Emersions of the four Satellites of 

 Jupiter, for the Year 1 740, computed to the Meridian of the Royal Observa- 

 tory at Greenwich. By James Hodgson, F. R. S. In all 374. N° 449, 

 p. 332. 



This is another repetition of Mr. Hodgson's usual calculation of these 

 eclipses. 



A Continuation of an Account of an Essay towards a Natural History of Caro- 

 lina, and the Bahama Islands; by Mark Catesby, F, R. S. with some Extracts 

 out of the Qth Set, by Dr. Mortimer, Seer. R. S. N° 44g, p. 343. 



The extracts and account of the 8th set are inserted in N°441 of the Phil. 

 Trans. This Qth set begins with pi. 6l, of the 2d vol, and as the foregoing 

 treated chiefly of serpents, this contains the figures and descriptions of several 

 quadrupeds, intermixed with plants. 



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