DETEKMINATION OF DEFLECTION OF LIGHT EY THE SUN’S GRAVITATIONAL FJELL). 333 
CTOvernment, who provided them with transport, accommodation and labour. 
Dr. Morize, Director of the Eio Observatory, acting on behalf of the Brazilian 
Government, made most complete arrangements for the Expedition, and in this way 
contributed materially to its success. 
On behalf of the Principe Expedition, special thanks are due to Sr. Jeronymo 
Carneiro, who most hospitably entertained the observers amd provided for all their 
requirements, and to Sr. Atalaya, whose help and friendship were of the greatest service 
to the observers in their isolated station. 
We gratefully acknowledge the loan for more than six months of the astrographic 
object-glass of the Oxford University Observatory. We are also indebted to 
Mr. Bellamy for the check plates he obtained in January and February. 
Thanks are due to the Koyal Irish Academy for the loan of the 4-inch object-glass 
and 8-inch coelostat. 
As stated above, the expeditions were arranged by the Joint Permanent Eclipse 
Committee with funds allocated by the Government Grant Committee. 
[In Plate 1 is given a half-tone reproduction of one of the negatives taken with the 4-inch lens at Sobral. 
This shows the position of the stars, and, as far as possible in a reproduction of this kind, the character 
of the images, as there has been no retouching. 
A number of photographic prints have been made and applications for these from astronomers, who 
wish to assure themselves of the quality of the photographs, will be considered and as tar as possible 
acceded to.] 
3 0/?,rs, iS20 
