of the atmosphere , &c. 383 
But I must not take up the time of the Society by any addi- 
tional observations. It is in vain for me to pursue the subject 
any farther, in a situation so ill adapted to astronomical 
observations as Somerset Place ; I shall therefore resign the 
task to those who are more favourably placed in this respect, 
and who possess instruments better calculated for an investi- 
gation which requires so much accuracy. 
