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Tofore/ee the Rife or Fail of -the Barometer in Day-time. 



Observe it at feven o'clock in the morning, and afterwards at 

 nine and at ten. If it remains fteady, its next motion will pro- 

 bably be downwards. So alfo if it falls within that interval of time, 

 the probability is, that it WiW fink ftill lower. But if it rifes with- 

 in that interval, the chances of a greater rife or of a greater fail are 

 equal. 



•» 

 Again, obferve the barometer at one in the afternoon, and 

 again at three •, if it remains unmoved, it is probable that it will 

 rtfe, but if -it has fallen, the chances of a farther rife or fall are 

 equal. 



APPENDIX. 



