242 PROCEEDINGS OF SECTION A. 
several of the phases in the first analysis, and we now give the 
corrected results. They are stated in terms of the notation 
adopted in the British Association reports. The larger com- 
ponents show a very fair agreement in the two cases, but, as is to 
be expected, the smaller ones do not agree so well. This has been 
found to be the case at other places where the tides have been 
analysed, notably in India ; the amplitudes being so small they 
are confused with the meteorological effects. 
Results of Harmonic Analysis of Port Adelaide Tides. 
Analysis of Tide Curve for Analysis of Tide Curve for 
12 months beginning midnight, 12 months beginning noon, 
February 28, 1889. January 1, 1893. 
Semi-range Semi-range 
in feet. K in feet. K 
eee eet 08 122° 06 108° 
See een eG 180° 1°70 182° 
unas EME 0 02 178° 04 194° 
Ghee Mee cat setae pale aees teed ‘Ol 180° 
DO GSC CRA AERO CHtRate "21 51° 22 62° 
ow pee es 84 51° 82 54° 
dae ae gsc eA eRe SHh. ene eee siesjenctars UL 165° 
Race ccc aCe Cal Pam entioe ne aeacey aul me Caer ee “04 138° 
WP eee  siadacwarmeadttects 47 Wee *46 179° 
M, Ol 24° 03 8° 
BNiaes ae ane toeeeeue tet ie 7/ak 121° 1:69 119° 
M; cfatelayereie.ejelejeelevelelovelsveisie|{limiivielays\sfe)sialetslors aheieieletele ‘06 99° 
es a 02 176° 02 171° 
MA eecchesccocssmecll! wetuscsctene. (Ill) vecmecscecnes ‘01 259° 
ING cee cone 08 294° ‘10 198° 
sews Gao eeTar a nll eeeateaeeteal ob | chaos emeutonss “12 140° 
VIM Re Tera atacaisome sane Baccen ‘06 76° 
OP sccncnes tans 53 34° +5ilt 30° 
dF capeeannssncescnanre < aetewe 05 65° 
(Ais eanacceebsoancisaegas| |) liconmpa noone owes ‘07 Sie 
EPR ace che(ou tee aicicle Sec ia ra inlabeiatetuiatalcicisct aE Votes awerneitee “28 226° 
DSM bed osctacsecodls peeoetecesden Tl Misdensennaer ‘10 67° 
IVES wise trite tested uta eon aa ao aee ‘09 99° 
Sa eanasscrnmontoscies 25 1322 36 121° 
Saal cestoceeceacssens 17 WY 28 54° 
IMISE ie sac ctenesuse eee 13 256° 11 254° 
Mf 08 194° O04 168° 
hit Coa eedeis Saran oars er 08 258° 06 143° 
The behaviour of a wave in travelling up a gradually narrowing 
channel is well exhibited in the tidal effects of Spencer and St. 
Vincent Gulfs. The wave is propagated with a greater speed 
along the deep water of the middle of the gulf than along the 
