C—la

10

Table 4. —Return showing Surveyors employed and the Work on Hand on 1st April, 1921.

Table 5. —Principal Classes of Office-work done from 1st April, 1919, to 31st March, 1921.

APPENDIX IT. THE MAGNETIC OBSERVATORY, CHRISTCHURCH. ANNUAL REPORT OF THE DIRECTOR (H. P. SKEY, ll.Sc). Durino the past year the Magnetic Observatory, Christchurch, and the substation at Amberley have operated successfully. At Christchurch the A.die magnetographs have been kept in continuous operation, and the resulting magnetogranis have been developed and measured at instantaneous Greenwich hours, as has been the practice in previous years. The adoption of Greenwich time Eor curve-measurement is now practically certain to be universal at magnetic observatories very shortly, but it is also certain that, instead of instantaneous values at the hours, mean values over the hour, centring at the Greenwich hour, will be usually published ; but for some researches it will probably be found advisable to also publish instantaneous values for certain days. The mean values of the magnetic elements for the year 1920 arc— Mean Values, Change since 1920. 1919. Magnetic declination (east) .. .. .. 17° 01-7' +3-1' Magnetic horizontal force .. .. .. 0-22261 C.G.S. unit -19y Magnetic inclination (south) .. .. .. 68° 09-2' +1-4' Northerly component .. .. .. .. 0-21284 C.G.S. unit —26y Easterly component .. .. .. .. 0*06618 +13y Vertical component .. .. .. .. 0-55525 +18y Total magnetic force .. .. .. .. 0-59820 +8y

Names of Chief Surveyors. Sui •veyors employed. 1 T r, m 5°" Contract. District. ! rary ' | Work or Settlement. Hand. Stall'. Native Blocks, Ac. "Sf ■ | t °™- R. P. Greville, F.R.O.S. H. M. Skeet.. W. F. Marsh H. J. Lowe .. G H. M. McClure C.Cook H. D. McKellar R. S. Galbraith G. H. Billiard R. T. Sadd .. T. Brook 4 12 4 4 3 2 2 '.. 2 1 5 1 1 7 North Auckland.. Auckland 1 9 Hawke's Bay 6 Taranaki 12 Wellington Marlborough 2 .. Nelson 1 Westland Canterbury Otago 1 Southland Acres. 51,520 155,795 34,929 7,780 28,575 18,581 299,il5 14,200 Acres. 10.404 5 I,SOS 23,259 34.293 51,034 1,560 Miles. ACTl.8. v. 194 5 131 8] 50 326 5 8 48 'k ; :: Totals .. 40 36 010,501 172,792 270-0 13 I i

District. Plans placed on Instrument of Title. il I I si O £1. ■o 45 2 ° c3 id .1 ■« 2 fl Ss Sis T ale 11 1*" £* or Maps drawn for Lithography. , If i - Lithographs North Auckland .. Auckland Hawke's Bay Taranaki Wellington Marlborough Nelson Westland Canterbury Otago Southland 1,038 1,294 468 346 1,437 215 392 200 549 519 172 4,983 1,350 5,702 1,894 2,180 1,103 1,378 1,356 6,737 778 468 131 753 522 194 16 5,855 51 2,013 00 [,684 247 2,003 2,603 2,421 1,449 3,844 164 366 859 1,228 551 459 689 150 102 38 586 194 205 889 890 950 10 II 73 II 18 29 7 10 2 27 23 13 £ s. d. 133 8 0 298 16 11 63 12 0 44 9 0 5 3,107 950 737 400 222 i 25 0 3 51 3 8 01 17 0 33 7 6 126 12 0 40 6 6 580 7 4* 950 Totals 956 [ 878 12 10 0,030 31,947 7,514 18,244 5,061 3,937 27 200 * Revised.