PHILOSOPHICAL TRANSACTIONS. 589 



An Eclipse of the Moon on the IQth of Augtist, 168I. Observed at Dantzic by 

 M. Hevelius. Philos, Collect, N° 5, p. 160. 



Corrected time. 

 At 2*^ 46^"^ the first appearance of penumbra. 

 3 3 beginning of the eclipse. 

 5 2 the sun's centre rose. 



An Account of a very strange and rare Case in Physic, with the Description of 

 a monstrous Aniinal cast out of the Stomach by Vomit. By Dr. Lister, of 

 York, F. R. S. Philos. Collect. N° 6, p. 164. 



I send you (here inclosed) the true and exact shape of a worm, which a man 

 vomited up here the last week. I found it myself in the blood which came up 

 with it, having caused it to be washed for the more careful examination of it, 

 much of the blood being clods of a kind of skinny and fleshy substance, baud 

 aliter, quam in mulierum molis excernendis accidere solet. Of this kind of 

 blood there was about 2 lb weight saved in the washing, and this strange ani- 

 mal among it ; which was easily discovered, being of a dark green-colour like a 

 horse-leech, and spotted. I could not perceive in it any life or motion ; the 

 girl that washed the blood having almost beaten off a fin, and part of one of 

 the forks of the tail, and burst the belly of it; yet it was curiously and regu- 

 larly shaped in all its members. The spirit of wine in which I put it has 

 changed its colour, but yet it still remains perfect enough to satisfy any curious 

 person. 



The patient imagined he drank it the last summer in pond-water. This is 

 certain, he had about his stomach and right side a most exquisite and torment- 

 ing pain, for at least 4 months last past, which many times threw him into 

 horrors and chillness, ague-like; and indeed when he vomited this up, he was 

 the sickest man I ever saw not to die; he also voided blood by stool several 

 days, and now I believe he will recover, though his pains are not wholly ceased. 



This animal was about 4 inches long, and in the thickest place 3 inches 

 about ; it had 3 fins of a side, all near the head, and the upper pair most ex- 

 actly and elegantly figured, as is described; all these fins were thick and fleshy; 

 but the forked tail was finny and transparent, and to be extended; it was placed 

 horizontally, not as that of most, if not all, small fish, and even newts and 

 tadpoles, in which particular it differs from them all, as well as in the fleshiness 

 of the fins. See fig. 6, pi. 15. 



Besides this odd animal, I found the head of another of a different shape^, 

 as is expressed, fig. 3, pi. 15, but of a dark green-colour also, as the other; the 



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