F 3-
recording parts in correct tension. At the same time the hourly time-break was made to work directly from the hourly signal current, as the original arrangement by which the hand of the barograph clock diverted the minute signal from the seismograph to the barograph, every 60th minute, was occasionally uncertain in its action.
The station barometer No. 1323 and the large Casella barometer were compared with the Observatory Standard on April 30.
Beckley Anemograph. This instrument was oiled and the orientation of the vane checked once a month.
During the typhoon of August 18, the cups were caught in the antennæ of the wireless aerial, which were broken by the strong wind. They were repaired on August 23.
Dines-Barendell Anemograph.-The bearings of the vane were oiled and its orientation checked once a month. The spindle of the float was cleaned and oiled once a week.
The Mean monthly results of comparisons with the records of the Beckley Anemograph from 1910-1922 are given in the following table, together with the results for 1923:-
Month Mean 1910-1922 1923 January 2.01 1.31 February 2.06 1.40 March 2.09 1.58 April 2.21 1.52 May 2.20 1.95 June 2.14 1.86 July 2.07 1.86 August 1.97 1.80 September 1.95 1.50 October 2.09 1.67 November December YearFactor for converting the actual run of the Beckley Anemograph cups to velocities recorded by the Dines Pressure Tube Anemograph.
Factor (Dines÷Beckley -).
Gap Rock Anemograph.-As the exposure of this instrument was found to be unsatisfactory, it was not returned to Gap Rock. It is proposed to mount it at Waglan early in 1924.
F 3-
recording parts in correct tension. At the same time the hourly time-break was made to work directly from the hourly signal current, as the original arrangement by which the hand of the barograph clock diverted the minute signal from the seismograph to the barograph, every 60th minute, was occasionally uncertain in its action.
The station barometer No. 1323 and the large Casella barome- ter were compared with the Observatory Standard on April 30.
Beckley Anemograph. This instrument was oiled and the orientation of the vane checked once a month.
During the typhoon of August 18, the cups were caught in the antennæ of the wireless aerial, which were broken by the strong wind. They were repaired on August 23.
Dines-Barendell Anemograph.-The bearings of the vane were oiled and its orientation checked once a month. The spindle of the float was cleaned and oiled once a week.
The Mean monthly results of comparisons with the records of the Beckley Anemograph from 1910-1922 are given in the follow- ing table, together with the results for 1923:-
Factor for converting the actual run of the Beckley Anemo- graph cups to velocities recorded by the Dines Pressure Tube Anemograph.
Factor (Dines÷Beckley -).
3
Month.
Mean 1910-1922.
1923.
January,
February,
March,
April,
May,
June,
July,
August,.
September,
October,
November,
December,
Year,
2'01
1'31
2:06
1'40
2'09
1'58
2.II
158
2.21
152
2.10
1.69
2.20
1'95
2*21
1*95
2'14
1-86
2:07
1-86
197
1.80
195
1*50
2:09
1-67
Gap Rock Anemograph.-As the exposure of this instrument was found to be unsatisfactory, it was not returned to Gap Rock. It is proposed to mount it at Waglan early in 1924.
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