1869.] 



of August, 1868. 



53 



Fig. 1. 



i 



and the Bureau des Longitudes, also located themselves ; lastly, 

 another French observer, M. Stephan, and party, took their post 

 of observation at Wah-Tonne, on the Pe- 

 ninsula of Malacca. Another German expe- 

 dition stationed at Moolwar, eighteen miles 

 south of Beejapoor, were unfortunately pre- 

 vented by clouds from making any observa- 

 tions. 



Fig. 1 shows the path of the eclipse, the 

 black band covermg all places within the hue of 

 totality. The difierent stations are named and 

 left white. Thus the North German observers 

 would secure their results at half-past six in the 

 morning, soon after sunrise, whilst those situ- 

 ated at the more easterly stations would not 

 commence work until several hours later. Most 

 of the expeditions were supplied with photo- 

 graphic apparatus, and it was hoped that by 

 thus securing photographs of the totality, taken 

 at intervals of several hours, it could be ascer- 

 tained whether the form of the protuberances 

 underwent any perceptible change of shape. 

 The German expedition at Aden and that under 

 Major Tennant at Guntoor were more or less 

 successful in securing photographs, but suf- 

 ficient time has not yet elapsed to enable any 

 comparative examinations to be made of these. 



The principal phenomena which had to be 

 observed (besides the general aspect of the 

 country, the variations in the intensity of Hght, 

 &c.) were : — 



1. Photographic delineations of the pheno- 

 mena of totahty. 



2. The position, heights, and general con- 

 figuration of the red protuberances. 



3. The appearance of the corona and its 

 state of polarization. 



4. Spectrum observations on the corona and 

 prominences. 



These by no means exhaust the list of what 

 was to be observed, but writing after the event, 

 they form convenient headings under which to 

 range the various discoveries. For the sake of 

 convenience, the results of the various expedi- 

 tions will be collated and described under these 

 several headings. 



t^4 



LiKlfilifiP^ 



ill 



7(&^ JTjnne 



The Path of thfi Eclipse— 

 Auguit 18. 



