240 Second Report of the Meteorological Committee of 



posal by the Astronomer Royal, and so soon as it shall be fur- 

 nished with a new tube, and otherwise repaired, will be for- 

 warded to Captain Wolfe, with a request that his series of ob- 

 servations may be continued with this instrument, instead of 

 that at present used; — Robben Island being in many respects 

 a highly advantageous station for acquiring an insight into the 

 Meteorology of this point of the coast, much more so than Cape 

 Town itself. 



From Worcester, your Committee have received a register of 

 the Thermometer only (having no Barometer), from P. J. 

 Truter, Esq. Civil Commissioner for the district, for the month 

 of January of the present year. Having only one Thermome- 

 ter, which is used both for ascertaining the interior temperature 

 and that of the outer air, the Committee would recommend that 

 he should be supplied with at least one other, and be requested, 

 until a barometer can be procured, to fill up the column of the 

 in-door Thermometer with observations of the hygrometric state 

 of the air, as ascertained by the depression of temperature pro- 

 duced by wrapping the bulb in wet linen or cotton, and sus- 

 pending it freely, in the manner recommended in p. 12 of their 

 Instructions. 



-The Committee have also received from the Astronomer Royal, 

 and from Sir J. Herschel, hourly Observations at the Solstices 

 of December 1834 and June 1835, and the Equinox of March 

 1835, made according to the plan proposed in their printed In- 

 structions. The comparison of these observations has shewn, 

 that, in this locality at least, even at stations so near together 

 as Feldhausen and the Royal Observatory, the fluctuations of 

 atmospheric pressure are very far from nicely corresponding, 

 ami that, so long as any wind subsists in a mountainous dis- 

 trict, the atmospheric strata can by no means be regarded as 

 horizontal. The calm, however, having been complete and un- 

 interrupted for ten successive hours on the night of the 22d 

 ult., afforded an excellent opportunity for determining the dif- 

 ference of level of the two stations, which appears to be 129 feel 

 8 inches, subject to a trifling correction for the zero points of 

 the barometer, which remains to be more exactly ascertained. 



Communications have been received by the Committee from 

 Sir E. Ryan, Chief-Justice of Calcutta, containing a Register 



