II, of his Report.
From a tabulation made according to hours of the day, but not given here, there is seen to be a diurnal fluctuation at Cape Sheridan amounting to a little more than 1/100 of an inch.

The minima of this fluctuation are fairly well defined from November to April and occur at about 2 o'clock both A.M.and P.M.
After leaving Etah, August 17, 1908, on the voyage northward until July 12, 1909, thermograms covering 5-1/2 months and barograms covering nine months of this interval were obtained from self-recording instruments.
These are records in addition to the direct hourly readings of the thermometer and barometer made by the tide observers and from which the above results have been deduced.
FOOTNOTES: [4] Transmitted by O.H.TITTMANN, Superintendent, Coast and Geodetic Survey.
[5] These observations were made by Marvin and MacMillan, assisted by Borup, seaman Barnes, and fireman Wiseman .-- R.E.P.
[6] Results from Greely's observations, 1881-83, covering a period of nearly two years.
[7] Observations made in 1875-76 and 1881-83.

Greely's Report, Vol.

II, p.

230.
[8] Greely's Report, Vol.