512 



[March 26, 



Ex. 1. Height of Mont Blanc above Geneva from the observations 

 of MM. Bravais and Martins, August 29th, 1844. 



A' 19'3 



' - 7'6 



500-0 



511*7 



B 729-65 mm. 



b 424-05 

 B+ b 1153-70 

 B-6 305-60 



M' 18-6 

 m f - 4-2 

 22-8 

 X 4-23 



H 1335-33 

 L 46 

 I 0-09 



1-3 



p 96-4 q 



14118-1X511-7-T-500 

 = 14448-5 



10-8 A" for 150001 

 1-2 diff. for 800 J ' 

 I- 9 -H" for 1500, H 

 18-7 -q 

 H= 14459-0 difference of level. 

 Result by Laplace's formula 14459-4. 



Table of Corrections. 



305-6x52400-7-1153-7 

 = 13880-0 



272-9 c for 1300 

 61-6 diff. for 880 

 103-6 p 

 14118-1 



