•VOL. XXXVII.] PHILOSOPHICAL TRANSACTIONS. 481 



the small-pox raged there 50; the whole number of inhabitants in that town 

 are ld36; males 782, females 854. 



N. B. There is at present no sniall-pox in that town. 



A Catalogue of Eclipses of the four Satellites of Jupiter, for the Year 1732. 

 By Ja7nes Hodgson,* F. R. S. and Master of the Royal Mathematical School 

 at Christ's Hospital, London. N°419, p. lOQ. 



The great number of eclipses that happen in a year, amounting to 352, 

 though the 4th satellite will pass wide of the shadow, after the middle of 

 January next; the ease with which they are observed, especially since the great 

 improvement made in the reflecting telescope by Mr. Hadley; the small skill 

 required in making the observations, since the difference of times, when ob- 

 served by the largest glasses, and the smallest through which they may be seen, 

 amounts to scarcely one quarter of a minute ; render these observations the 

 most proper of any that the heavens afford us, at present, for determining the 

 longitude of places; and it may be truly asserted, that there are very few places 

 of note on the surface of the habitable globe, whose longitudes are already 

 known, that have not either been absolutely determined, or at least, have been 

 rectified and confirmed by them. 



These predictions of eclipses for the year 1732 cannot be of any use now. 



An Account of a Polypus, resembling a BraJich of the Pulmonary Vein, coughed 

 up by an Asthmatic Person. By Frank Nicholls, M. D. F.R.S. N" 419, 

 p. 123. 



Nicholas Tulpius, in observ. 7, book 2, gives the case of a man who, with 

 a large effusion of blood, threw up, by coughing, two branches of the pulmo- 



* Mr. James Hodgson was a useful writer and teacher in the elementary and practical pa rts o 

 science. He was the relation of Mr. Flamsteed, by whom he was educated, and by whom he was 

 appointed one of his executors, for publishing his tables and observations; having indeed been very- 

 useful to him in his life-time, by making numerous calculations for him, particularly in computing 

 the latitudes and longitudes of all the stars in the British catalogue, amounting to more than 3000. 

 Besides numerous communications to the Philos. Trans, from vol. ^-t to vol. 49, he published several 

 other books; as, 1. A System of tlie Mathematics, in 2 vols. -ito. 1723. 2. The Theory of Jupiter's 

 Satellites, 4to. 1750. 3. The Valuation of Annuities on Lives, in -Ito. 4. An Introduction to Chro- 

 nology. 5. The Doctrine of Fluxions, 4to. 1758. 



I find no account of the life or death of Mr. Hodgson. But by the date of the first of the above 

 books, it appears that in 1723 he was F. R. S. and mathematical master to Christ's Hospital; and 

 that he died some time between the years 1755 and 1758; as the last of his papers in the Philos. 

 Trans, relates to an event in the former of these limits; and in the title of his last work, on Fluxions, 

 in 1758, he is spoken of as being then dead. 



VOL. VII. 3 Q 



