14 REMARKABLE EFFECTS OF SOL-LUJTAR 



reasonably infer that the power of exciting and 

 supporting paroxysms must then be considerably 

 raised above its usual force. 



Besides the deviations that may arise from this 

 cause, it is also reasonable to suppose, that the 

 state of febrile paroxysms must be occasionally af- 

 fected by every other change or perturbation of 

 the moon's influence ; but these are less remarkable, 

 and have not been as yet ascertained by accurate 

 observation. 



V. Of the state of Fevers in India, during the 

 Equinoctial Periods. 



I am now come to take notice of the remarkable 

 appearances observed in fevers about the vernal 

 and autumnal equinoxes. On this subject I have 

 received from others very little information; but I 

 have not been inattentive myself to those periods ; 

 and can pronounce with confidence, although my 

 observations have not been recorded with regula- 

 lity, that fevers are apt to occur more frequently, 

 and with greater violence about both of those pe- 

 riods, than during the intervals either of summer 

 or winter. 



From these observations I was induced many 

 years ago to advance, that the power of sol-lunar 

 influence was considerably greater during the equi- 

 noctial periods than during the intervals either be- 

 fore or after them. It has therefore lately afforded 

 ine considerable satisfaction to discover m De La 

 Laxde's astronomy, that De La Place has de- 

 termined, from a very large collection of observa- 

 tions made bv De La Lande himself, that tha 

 tides at Brest, about the time of the equinoxes,' 



