22 LUNAR INFLUENCE ON THE 



If at the December solstice the moon cross the 

 equator, one or other of the lunar tides will act in 

 conjunction with the annual tide in its conflict with 

 the solar tide in the southern hemisphere : and the 

 other of the lunar tides will at the same time come 

 into conflict with the counter-solar tide in the 

 northern hemisphere. 



If at the June solstice the moon be in its farthest 

 declination either north or south, then in the .former 

 case the lunar tide, and in the latter case the coun- 

 ter-lunar tide, will act in conjunction with the solar 

 tide in its conflict with the annual tide in the 

 northern hemisphere. 



And if at the December solstice the moon be at its 

 farthest declination north or south, then in the former 

 case the counter-lunar tide, and in the latter case the 

 lunar tide will act in conjunction with the solar tide 

 in its conflict with the annual tide in the southern 

 hemisphere. 



The seven foregoing paragraphs show the various 

 extremes of conjunction and opposition of the lunar 

 tides and the annual and solar tides. The influence 

 of the moon in causing oceanic tides is universally 

 recognised. And the coincidence of periodically 

 recurring currents in the ocean with the movements 

 of the moon to and from the equator, has been 

 pointed out by Humboldt and others. But the 

 analogous influence of the moon on the atmosphere 

 has not been so generally recognised. The con- 



