364 Meteorological Obfervations for the Tear 1783. 
northern lights in feveral of the pteceding and Morus — 
"Two bright parhelia on the 8th, in the morning. © 
Difeafes in Ipfwich ; coughs,pulmonic cojtiplain toes Heath t 
In Salem ; inflammatory, pleuritic and rheumatic fevers, abfcef- 
fes ; In Beverly > pulmonic deters, T Ge tania EUR, &c.. 
APRIL. 
"Therm. Barom. 
A.M. Noon. P.M, ' A.M. Noon. P. M.. 
Highett, 60 80 71:|30,70 30,52 30,57 | Rain. 
Loweft, . 38: 407 49 | 29.39 29,32 29,29 | Inch. 
Mean flat. 47.54 50] 30,10 39,09 39,07 | 1,007 
The weather warm and pleafant. Winds jrinciday from 
S. to W. N. W. The air frequently fmoky. The 17th, éx- 
ceflive warm for this month ; the therm. ranged at 82°, within 
doors, at 5, P. M. The ground very dry, which feems to 
“have retarded vegetation. Five days on which tain fell. 
Greateft deg. of heat on the 17th, at 2, P. M.---barom. 29, 
49---wind S.W. ~--fair. Greateft deg. of cold on the 13th, at 
7,4. M.---barom. 30, 44---wind N. N. W.---fir. Barom. 
higheft on the 24th, at 6, A. M.---therm. 48°---wind N.--- 
cloudy : loweft on the 12th, at 11, P. M.---- therm. 42?---- 
wind N. W.---rainy. : 
Early in the evening of the 7th, there appeared a bright 
Aurora Borealis, forming an arc about 20° above the horizon 
in the BV. At 20’ after 8", the brightnefs greatly increafed ; 
and lucid fpots, refembling torches, at different heights. above 
the arc, emitted numerous corrufcations. At 8* 46’, a very 
right Auroral zone was formed from E. to W. N. W. pafling 
the meridian near the zenith. Its motion, was vifible and.uni- 
_ form towards the S. gcieving its bcm as to the E, and W; 
points. 
