158 W. D. Lambert — Mechanical Curiosities 



that of tlie earth,^^ and the effect in question has not been 

 considered. Its existence, however, does not invalidate 

 the argument for the equatorward force. 



^*Tlie effects dealt with have been of the order gr/3( — J, where r is the 

 greatest dimension of the body involved and E the earth 's radius. The ratio 

 of the mass of the body to that of the earth would be of the order (--) 

 that is, we have considered quantities of the first order in — but have neg- 

 lected quantities of the third order. 



