102 : cork -REPORT—1862. 
following remark, referring to the tides of the Humber: “I would notice here 
a singular tidal phenomenon which exists at the Port of Hull; I refer to the 
fact, that whenever the tide reaches the 16-feet mark ” (over the dock-sill), 
‘it is then three hours to high water, whether they be spring tides or neap 
tides. Iam not:aware that the same thing occurs at any other port ; but such 
is the fact at Hull, that three hours after the tide has attained to the 16-feet 
mark, there is no more rise.’ 
These remarks gave rise to an animated discussion on the alleged pheno- 
menon, and resulted in the appointment of the following members of the 
Association as a Committee to conduct a series of tidal observations on the 
Humber, and report on the same to the next Meeting to be holden at Cam- 
bridge, viz. Mr, James Oldham, C.E., Mr. John Scott Russell, C.E., F.R.S., 
Mr. J. F. Bateman, C.E., F.R.S,, and Mr. Thomas Thompson, with £25 at their 
disposal. 
In commencing the ee for carrying out the wishes of the Asso- 
ciation, application was made to the directors of the Manchester, Sheffield, 
and Lincolnshire Railway Company for a month’s observations to be taken at 
their self-acting tide-gauge at the Great Grimsby Docks, but it was not con- 
venient to the directors to grant the request; they, however, permitted a 
gauge-pole to be fixed at their landing-pier at New Holland, on the Lincoln- 
shire coast of the Humber, a little above Hull, and gave every facility in the 
progress of the operation of observing the tides. 
The Hull Dock Company, through their secretary, Mr. W. H. Huffam, have 
eomplied with a request to have a month’s observations from their self- 
acting gauge of the Victoria Docks; and the resident engineer of the com- 
pany, Mr. R. A. Marrillier, has furnished the month’s valuable tidal obser~ 
vations. 
.. Mr. Thomas Wilson, of Leeds, an active member of the British Associa- 
tion, kindly offered a month’s observations from the self-acting tide-gauge of 
the docks of the Air and Calder Works, at the Port of Goole, on the river 
Ouse, which have also been furnished by Mr. W. H. Bartholomew, the resident 
engineer, 
Those on the Humber were commenced at or about 11 a.m., July 9th, 
and terminated at 3 p.m., August 6th; but those at Goole, which were begun 
at 11 a.m. on the 9th July, were continued until twelve o’clock at noon on the 
10th of August. 
_ The gauge at New Holland is so fixed as to correspond with, and is on 
the same level as, the Victoria Dock gauge at Hull, i.¢. the zeros are made 
to coincide. 
The observations were taken every five minutes at New Holland, but every 
fifteen minutes at the Hull Dock gauge; the observations at Goole were taken 
at intervals of five minutes. 
As a result of these tidal investigations it was seen, by the series of abser= 
Pa iots at both the stations on the | Humber, how accurately the statement is 
borne out as to rise of tides for three hours after attaining the 16-feet mark, 
and also that the time which the tide is falling from the period of high water 
to the same level again of 16 feet is also found to average about three hours. 
The observations are also important and valuable, as showing the general 
rate of the rising and falling of the tides at the various periods and places 
reported on. 
Although little or no light may have been thrown on the phenomenon in 
question, yet the various tidal observations obtained on the Humber and the 
river Ouse will no doubt prove valuable records on the question of tides. _ 
