Smithsonian Report, 1923. — Maunder 



Plate I 



The Corona of I90I, May 18 



Mrs. Walter Maunder's expedition to Mauritius. (Long. 3h. 50m. 12.6s. E.; Lat. 20° 6' S.) 



Drawing by Miss Beatrice Handler from a photograph taken 7 seconds after the commence- 

 ment of totality, with the "Newbegin" telescope of 4Ji inches aperture, and 71 inches focal 

 length. Exposure \i second. Plate, Lumiere, "Series A." 



The letters N. S., E. W., indicate approximately the direction in which the sun's axis and 

 equator, respectively, lie. 



