68 NOTICES OF THE MEETINGS [May 2, 
all that had been already said was only introductory, namely the 
approaching eclipse of July 28. After quoting an American news- 
paper, showing the great interest excited by this eclipse beyond the 
Atlantic as one of the strongest inducements for Americans to visit 
Europe in the coming summer, he invited attention to its course 
across Europe. Entering Norway near Bergen, the shadow crosses 
both coasts of Norway, both coasts of Sweden, and the eastern 
coast of the Baltic: then ranges through Poland and the south 
frontier of Russia across the sea of Azof through Georgia to the 
Caspian. Sea, It passes Christiania, Géteborg, Carlscrona, Danzig, 
K6nigsberg, Warsaw, and Tiflis. A great part of this course, 
especially that from Bergen to Kénigsberg, is very accessible by sea, 
and Warsaw by land. The Lecturer trusted that many English 
travellers might be induced to observe this eclipse. If possible, 
stations should be chosen as well near the northern and southern 
boundaries of the shadow as near the centre. No particular skill in 
astronomical observation is required, the phenomena being rather of 
a more generally physical kind: and indeed, as far as the observa- 
tions of the eclipse of 1842 showed, the travelling physicists had 
been more successful than the stationary astronomers. The appa- 
ratus required would depend on the special objects of the observer ; 
a telescope and a watch might be considered indispensable in every 
case: for analysis of light, acommon prism and a polariscope might 
be taken by some persons: photometry, actinometry, &c., might be 
interesting to others, and appropriate instruments would be required : 
other observers would be interested in meteorology. The apparatus 
which the Lecturer considered it most important to perfectionate 
now, for use during the eclipse, is photogenic apparatus ; it would be 
impossible to set too high a value on a series of Daguerréotypes or 
Talbotypes of the sun and corona taken during the eclipse. 
The Lecturer concluded by saying that a series of suggestions for 
the observation, accompanied by a map, had been prepared by a 
Committee of which he is a member, and were nearly ready to leave 
- the printer’s hands: and he undertook to transmit a copy of these 
suggestions to any person who would make application to him. 
G. B.A. 
In the Library were exhibited :— 
Apparatus to illustrate the Pendulum Experiment [by Mr. Bishop]. 
Improved Orrery [by Messrs. Newtons]. 
“Towers and Spires of England "— the original drawings [by C. 
Wickes, Esq. ] 
Hindu Mythological Paintings [by the United Service Institution]. 
