92 REPOKT—1883. 
LJ-] 
Schedule for Reducing Published Results. 
ina” | firma fa «ogi oa a 
1 a aes se ee 
x no 
ee ee oe ee ee ree 
M, | —4(v-2) r +p 
j M, ) —6 (v—£) | R —p\+7 
M, a —8 (v—£) | MS —2(v-£) 
i hie 0. Sl" | 2MS or p —4(7—&) 
wre Air ime es 28M +2 (v—£) 
ihe, L wee —2 (v—£)—R+47 || Fortnightly —2é 
Ome Oe oc Soret a ee 
In a paper by Captain Evans and Sir William Thomson, read before 
the British Association in 1878, certain tidal results are given which 
require a slightly different treatment in order to reduce them to the system 
now in view. It appears that for these results, schedule [J] is applicable 
if we erase all the $7’s and 7’s that occur therein, except in the single 
case of the tide M,. 
§ 9. Description of the Numerical Harmonic Analysis for the Tides of 
Short Period. 
Ir forms no part of the plan of this Report to give an account of the 
instruments with which the tidal observations are made, or of the tide- 
predicting instrument. A description of the tide-gauge, which is now in 
general use in India and elsewhere, and of the tide-predicter, which is at 
the India Store Department in Lambeth, and of designs for modifications 
of those instruments, has been given in a paper by Sir William Thomson, 
read before the Institution of Civil Engineers on March 1, 1881,’ and 
to this paper we refer the reader. Our present object is to place on 
record the manner in which the observations have been or are to be 
1 «The Tide Gauge, Tidal Harmonic Analyser, and Tide Predicter,’ Proc. Inst. 
C.E. vol, 45, part ili. 
