( m ) 
nefs, but as it neither ads as an Aftringfcnt, nor in a 
Way obferved by Phyficians, it muft ftill remain 
among other 'Defiderata . 
IV. A Letter from Mr . John Dove to Edmund 
Halley, LL. D. K 3 ^. 5 = Aftrom. at 
Greenwich, containing an Account of a Co- 
met feen on February 29, 173!. 
on Board the Monmouth, James Montgomery 
Commander , i/z Table-Bay, March 17, 1731* 
5 / i?, 
I Had the Honour to wait on the Governor the 
8th of February^ in Latitude 33° South, where 
he parted with us for St. Hellena. 
The 29th of February , at about half an Hour 
pad Ten at Night, I judge (having a good Obferva- 
tion at Noon) we were in Lat. 34 0 28' South, and 
Long. n° 35' Weft from Cape Bonne Ejperance^ the 
Moon fhining very bright, being near the Full, we 
faw fomerhing very bright rife about Weft, which I 
judge to be a Comet • It fet about Eaft, palling from 
Weft to Eaft in about five Minutes, between the 
Moon and our Zenith, and to the Southward of Sptca 
Virgmis y it carried a Stream of Light after it about 
