1824.] Col. Beaufoy's Astronomical Observations. 29 



Article V. 



Astronomical Observations, 1823. 

 By Col. Beaufoy, FRS. 



Bushei/ Heath, near Stanmore. 



Latitude 51° 37' 44-3" North. Longitude West in time 1' 20-93". 



Dec 7. Immersion of Jupiter's third < 9h 



satellite j 9 



Dec, 12. Immersion of .Jupiter's first C 12 



satellite } 12 



Dec. 12. Immersion of Jupiter's second ( 14 



satellite { 14 



A grievous error must exist in the time set down for the emersion of Jupiter's third 

 satellite, Dec. 7. 



According to the Nautical Ephemeris, it should have taken place at 12 h 27' 01"; 

 but after fruitlessly watching at the telescope until 14 h 29', that is for more than two 

 hours after the time specified, clouds relieved me from further attendance. 



Article VI. 



On Lapulin, as a Medicine. By Nicholas Mill, Esq. 

 (To the Editor of the Annals of Philosophy.) 



SIR, Bridge Cottage, Camber-well, Nov. 20, 1823. 



Having noticed in an American journal the experiments of 

 Dr. Ives at New York on the annon hop, and which appeared to 

 me of considerable importance in medicine, I was induced to 

 extend those inquiries, and apply the result, if beneficial, to prac- 

 tice among my own particular friends. 



Preparations of the hop have been occasionally used in medi- 

 cine in this country. The whole of the plant has usually been 

 employed to form a tincture, but from the extraneous matter 

 introduced by this means, it has doubtless rendered this medi- 

 cine inert, if not prejudicial. Dr. Ives discovered that the true 

 aromatic bitter of the hop resided solely in a pulverulent matter, 

 which he called lupulin, for the collection, preparation, and 

 administration of which 1 am about to give specific directions. 



Take any quantity of the best hops, and rub them strongly 

 between the hands, or put them in a bag, and beat them for 

 some time ; when the beating is completed, throw them on a 

 coarse wire sieve, which will only suffer the dust, &c. to pass 

 it; let them be well rubbed on the sieve till every thing has 

 gone through, except the leaves and steins of the plant ; reject 

 the leaves and stems altogether, and sift what has already passed 



