Iviii Appendix. 



of the solar rotation, whicli is far more rapid at the equator than near 

 the poles, we shall probably also find the clue to the problem of solar trade 

 winds. 



I fear I have exhausted your patience. I have certainly exhausted the 

 time at my disposal either for the preparation or delivery of this address. 

 My subject, however, remains quite inexhaustible; and, with the eclipse of 

 December last, at least one-half of my notes must be remitted as material for 

 a future address. 



