Edmund Halley. 
[February, 
94 
and Mr. Waddington were able to take advantage of Halley’s 
rf air above the tide-winds), was the pot 
*'{’SS£ Engaged 5.' 
rf^^rH^sSu^rrc.:: 
the remarkable diredt elliptic comet of 1680, the length o 
, t Q ;i W oc calculated at ioo millions of miles, with a 
period of 8813 years, having observed it before its penhe ion 
Pa DXg h l P po V rHon“rx68x Halley spent a considerable 
t N o e £° n Ab ST^wh?2S£ "sdSfiTjiurnaf^ tZ 
at this period. The following is the entry in Halley s hand- 
writing* ; — 
Xllustrissimo Dno 
Dro Abbati Nazario 
Rom^e humillime offert 
Edm. Halley. 
Durinff the year 1682 Halley observed and determined the 
comet°of ‘SI of 
predided the return of this comet at the close of 1758 °r 
* See Nature, March 6, 1879, p. 4 22 - 
