the ocean on the plumb-line in INDIA. 733 
latitude of D, it is easily seen, is about | D. This, therefore, I shall adopt as the depth 
at D for all lunes which have their middle line in APD. 
;irn, 
quent deflection caused by this portion of the ocean =f sin 15°.d = 0''-]86x-d 
Hence the deflection caused by the whole lune ^2 • 
= 0''-185(fd+d.+4+d.+ ). 
lunl''ThTprrcrssTfoUot?s ^ SpMc'^ f """" 
be used as a scale. After the zero noint the fi n « ° to 
tadius of the flrst circle about P — n/t^ll 
they ^rwarf ra 1 “ ^ 
11 P y increase, and the 29th compartment terminatpu af iiao r -o 
those regions with any degree of accuiacy, as I have already noticed. " 
aevJ res,te“ t 
rt:d "^t’h“t f other :xt 
Of the six Stations T h= i. /c ’ deflections are resolved north and east, 
me SIX stations I have chosen (for reasons which will appear), one has no name as 
there is no known place there. I therefore call it “Near Goa ” Tt • h if u ’ 
Punn® and Karachi. re cau it Near-Goa. It is half-way between 
