346 I'K.f. H. H. Turner and Mr. H. K. Nc-wall. 



the foregoing account, not only for assistance rendered, but also for 

 their great kindness to us. I have already, in a letter, expressed to- 

 the Royal Society my deep sense of the obligation they have laid u> 

 under. 



As in the case of the " Volage " and " Melpomene," the officers and 

 men of the "Theseus" not only assisted us with certain instruments, 

 but organised crews for others, and many lines of work which it was. 

 impossible for the observers sent out from England to attempt. Their 

 skill, resourcefulness, and steadiness were alike truly admirable. 



Thanks are also due to the Managers of the Orient Steam Naviga- 

 tion Company, who conveyed the instruments to and from Gibraltar 

 freight free. 



I may add, the Civil Governor of the Province of Alicante, Senor 

 don Hipoldo Caras y Gomez de Andino, visited the camp to aure 

 himself that all the assistance the Spanish authorities could give had 

 been rendered. 



" Total Solar Eclipse of 1900 (May 28). Preliminary Report on 

 the Observations made at Bouzareah (in the Grounds of 

 the Algiers Observatory)." By Professor H. H. TuKNER r 

 M.A., F.R.S., and H. F. NEW ALL, M.A., Sec. R.A.S. Received 

 June 28, Read at Joint j Meeting of the Royal and Royal 

 Astronomical Societies, June 28, 1900. 



The Report is presented in three parts. 



PART I. ORIGIN of THE EXPEDITION AHD GENERAL PREPARATIONS BY THE. 

 Two OBSERVERS JOINTLY ( t 10). 



PART II. SEPARATE REPORT BY PROFESSOR TURNER. 



1112. The Cameras and Coalostat. 



13. The Polariscopes. 



1416. Adjustments. 



17 19. Programme of Observations. 



20. The Standard Squares. 



21. Use of Green Screen. 



22. Integral Photometer. 



23. Development. 



PART III. SEPARATE REPORT BY MR. XEWAXL. 



24. The Four-prism Spectroscope with Slit. 



25. The Photographic Camera with large Objective Grating. 



26. The Polariscopic Camera (Savart Plates and Nicol Prism). 



27. Atmospheric Polarisation. 



28. General Observations. 



