( - OI ) 



A 



TREATISE ON THE BAROMETER, 



BY FRANCIS BALFOUR, ESQ^ 



I. 



TN a Treatise, published at this place a few weeks ago, 

 on Sol-Lunar Influence in Fevers, I have endea- 

 voured to shew, " That all Fevers are liable to certain 

 diurnal mid septenary * revolutions ; and that these re- 

 volutions are uniformly and constantly connected with 

 fixed periods of time. 



II. 



Having established this proposition (i.), it was na- 

 tural to suppose that the power or influence which 

 is capable of producing these very remarkable and 

 interesting revolutions on the human constitution, 

 at certain intervals, did not exert itself without ef- 

 fecting, at the same time, some corresponding pe- 

 riodical change in the state of that element in which 

 we constantly exist ; and in which all the operations of 

 life and nature are carried on. 



Other necessary avocations having hitherto pre- 

 vented me from being able to make those experi- 

 ments myself that arc required for deciding on this 



* That is to say, changes happening after an interval of seven or 

 eight days. 



question 



