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very confplcuous, numbers of luminous ftreamers 
darting up from below the horizon, fome of them 
reaching the zenith ; but none of the ftreamers lafted 
any confiderable time, and their light was but feeble. 
Several whitilh clouds appeared in the north ; the 
furnace occupied a great part of the horizon. This 
phaenomenon lafted almoft the whole night. 
The fame Aurora was obfcrved at Berlin, where it 
lafted from fix in the evening till nine. It was alfo 
obferved at Vienna, where it is faid that the needle 
of a compafs loft, during this phaenomenon, its ufual 
diredion, fhifting at firft two degrees eaftward, and 
afterwards four degrees the contrary way ; it was at 
the fame time remarked that the electrical machine 
had acquired an uncommon degree of force. 
XVI. A 
