VOL. XXXVIII.] PHILOSOPHICAL TRANSACTIONS. 577 



A Continuatiov of an u4ccount of an Essay totvards a Natural History of Caro- 

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

 out of the fifth Set. By Dr. Mortimer, R. S. Secret. N° 426, p. 447- 



A general account of this splendid work has been inserted at p. 433 of the 

 present vol. of these Abridgments. 



END op VOLUME THIRTY-SEVENTH OF THE ORIGINAL. 



A Catalogue of the fifty Plants from Chelsea-Garden, presented to the Royal 

 Society by the Company of apothecaries, for the Year 1731 ; pursuant to the 

 Direction of Sir Hans Sloaiie, Bart. P. R. S. By Isaac Rand, F. R. S. 

 N" 427, p. 1. rol. XXXVIII. 



This is the 10th catalogue of this kind that has been presented, making 500 

 plants. 



Explanation of an Essay on the Use of the Bile in the Animal Economy, by 

 Alexander Stuart, M. D. F. R. S. N° 427, p. 5. 



In a former short essay on the use of the bile in the animal economy, (Phil. 

 Trans. N" 414) some points, which required further illustration, having been 

 only hinted at, it is considered of use, to set these points in a clearer light, by 

 solving such difficulties, and answering such remarks, as occurred in conver- 

 sation and correspondence on that subject. 



The first remark is, that no notice is taken of the effect of the gall spilt on 

 the external coat of the intestines from the wound in the gall-bladder, whose 

 stimulus on the outside is supposed sufficient to have produced, and to have 

 solved all the phaenomena, or symptoms observed and related in the case; so 

 that all the symptoms which the Doctor attributed to a want of the stimulus of 

 the gall on the inside of the intestines, might have been more properly ascribed 

 to the same stimulus, acting on the outside of the uppermost guts, situated 

 nearest to the gall-bladder, whose complete contraction by the force of that 

 stimulus, expelling the air out of their cavity, and forcing it into the inferior 

 guts, as in windy colics, would have distended them to the pitch mentioned 

 in that essay. 



Dr. Stuart acknowledges that there is some appearance of reason lor this 

 remark, and the objection which it implies; but the whole strength ot the 

 argument lies in a supposition that a stimulus on the outside of the intestines 



VOL. vii. 4 E 



