(433 ) 
Q 
FN gta 34 
rd wal) ED 
JP 
This integral may be divided into five parts, corresponding to the 
above parts of the circuit. 
Distinguishing by appropriate indices the different values of hand A 
that have to be considered and keeping in mind that / is a constant 
both in the second and the fourth part, we have 
IS, SEL 
d fl iS d fl 
loge dai; log A—| — Jd = 0, 
“  da\h Se aa Na 
feo Se 
Re Q kt 
log A DE 1, log A gl te ] 1 A afs dh 
Og £ As 7a at + Og £ EE nl ab == 0g Ith A ills 
P R” h” 
h and h" being the values corresponding to 7 and 7”, the tempe- 
ratures in #' and FR". Similarly 
" 
fees az te = fi an 5(; at. 
Ss’ 
If we combine these results, re formula (34) for the electromotive 
force becomes 
h" 
m Aged 
Sa phe ae 
2e “ Aqzh 
h' 
, if we use (13) and (14), 
7 Add 
2a ( Nu 
Te lo CL sams. oe leden (35 
los (35) 
Geodesy. — “The connection between the primary triangulation of 
South-Sumatra and that of the West Coast of Sumatra.” By 
Mr. S. Brox. (Communicated by Prof. J. A. C. OupEMmans). 
I. Short description of the triangulations of South-Sumatra 
and the West Coast of Sumatra’). 
Towards the end of 1896 the measurements for the primary 
triangulation, which will serve as a basis for the topographical sur- 
1) For a more detailed description I refer to the papers of Dr. J. J. A. Mutter, 
occurring in the proceedings of the International Geodetic Association of 1892, 
1896 and 1903. 
