OF ARTS AND SCIENCES. 69 



2**. That the granulations have been smaller and less numerous. 



3*. That the light-gray colored background seen between the granules 

 has been more conspicuous and has occupied more space than 

 usual. 



4^*. That there are spots, which I have named " veiled spots," which 

 are seen through the chromosphere which is sjiread over them 

 like a veil. 



5*^. That these veiled spots are true openings of the photosphere, like 

 those of the ordiuarj^ spots. 



6®. That during this period these spots have been larger, darker, 

 and more numerous than I have before seen them. 



7*^. That the veiled spots are scattered throughout all latitudes, though 

 more complicated in the regions where the ordinary spots make 

 their appearance. 



8*. That I have observed spots at least within 10° of the north 

 pole of the sun. 



9°. That the flocculent objects sometimes seen projected upon the 

 umbra and penumbra of sj^ots are the remaining portion of the 

 granulations composing the chromosphere, more or less dis- 

 solved by the forces emanating from the interior of the photo- 

 sphere. 



Cambridge, October 1, 1875. 



