45 



KDomledge & Seieotifie Hems 



A MONTHLY JOURNAL OF SCIENCE. 



Conducted by MAJOR B. BADEN-POWELL and E. S. GREW, M.A. 



Vol. II, No. 3. [new series.] 



MARCH, 1905. 



C Entered at -] 

 Stationers' Hall. J 



SIXPENCE. 



CONTENTS.—See Page VIL 



The Coming Totatl 

 E^clipse. 



By W. Shackleton, F.R.A.S. 



is apparent on looking into the future to see what oppor- 

 tunities will be available during another solar cycle for 

 observations of our fiducial star under these special con- 

 ditions. Enumerated below are the total eclipses of the 

 sun during the next eleven years, with the locations of 

 the shadow paths. 



Date 



The extreme importance of making exhaustive observa- 

 tions during the total eclipse of the sun on August 30, 

 1905, is evident when we review the progress of astro- 

 physics during the past decade, and bear in mind that 

 the sun is the only star which can be examined in 

 geometrical detail, whilst onl)' the integrated effect of 

 every other star can be studied. The elucidation of 

 many stellar problems depend almost in their entirety on 

 a more perfect understanding of the conditions existing 

 on the sun. To give an example, the star y Cygni presents 

 a spectrum which, although akin to the Fraunhofer spec- 

 trum, differs markedly in detail, yet the outlying portions 

 of the sun give, in the " flash," a spectrum bearing a 

 close resemblance to that of the star, -\gain, the urgent 

 need of making every preparation to collect useful data 



1907 — Jan. 14 

 igoS — Jan. 3 

 igoS — Dec. 23 



igog — June 17 



1910 — May g 



191 1 — April 28 

 1912 — .April 17 



igi2 — Oct. 10 

 1914— -Aug. 21 



igi6 — Feb. 3 



Where visible 



5 

 01 



Ural Mountains, Central Asia, 



China 

 Pacific Ocean ; ends Isthmus of 



Panama 

 South Atlantic. (Annular eclipse, 



forming into a " Total " of 



short duration) 

 Greenland, Arctic Regions, N. 



Siberia 

 Antarctic Ocean, passes over 



Tasmania near end of eclipse 

 Australasia, Pacific Ocean 

 Spain, (.\nnular eclipse, form- 

 ing into a "Total" of short 



duration) 

 Venezuela, Brazil, S. Atlantic 

 Greenland, Norway, Sweden, 



Russia, Persia 

 Pacific, Panama, Colombia, 



Venezuela, .Atlantic, Azores 



Path of Shadow. Eclipse, 1905, August 30. 



