H, 15.

Return of Land Boilers and Machinery inspected during the Year ended 31st March, 1930.

Return of New Boilers inspected for the Year ended 31st March, 1930.

Return of the Number of Certificates issued to Land Engine-drivers and Electrictram Drivers during the Year ended 31st March, 1930.

Return of Land Engineers', Engine-drivers', and Electric-tram Drivers' Examinations held throughout New Zealand during the Year ended 31st March, 1930, showing the Number of Successful and Unsuccessful Candidates.

37

.'asssa j| ..gg&T( Boilers— Stationary, portable, and traction 1,060 1,340 2,605 5,005 Digesters, jacketed pans, steril- .. .. .. 2,532 izers, vulcanizers, and other steam receivers Air-receivers .. .. .. .. .. 388 Total boilers .. . . .. .. j .. 7,925 Machinery— Electric motors .. .. 16,989 3,666 4,306 24,961 Internal-combustion engines .. , 10,666 932 1,166 12,764 Water-power engines . . 208 j 82 175 465 Lifts .. . . .. ,. .. .. 2,613 Cranes .. .. .. j .. .. .. 273 Hoists .. .. . . . . .. .. 1,188 Total machinery .. .. .. .. 42,264 Grand total .. . . .. .. .. 50,189 !

Made in Dominion. I Imported. Total. Class. 7 — | 7—7 : 3 —« Number. Horse-power. Number. Horse-power. Number. Horse-power. I 1 i ! Stationary, portable, and traction 47 953 40 1,192 87 2,145 Digesters, jacketed pans, steril- 86 .. 113 .. 199 izers, vulcanizers, and other steam receivers Air receivers .. .. 109 .. 184 .. 293 Totals .. .. 242 953 j 337 1,192 579 2,145

Class. | Number. Class. Number. Competency— Competency—continued. First-class engine-driver .. . . 17 Locomotive-engine driver . . .. 3 Second-class engine-driver .. .. 160 Traction-engine driver . . .. 25 Steam-winding-engine driver .. . . 1 . Electric-tram driver .. . . .. 44 Electric-winding-engine driver .. . . 1 : Locomotive- and traction-engine driver . . 35 i Total . . . . . . 286

<D c? § pi J ■ Extra First First Second Ig Electric Loco- Traction ' tram 0 ' Tntal «' Class. Class. Class. Ss Winding. g§§ motive. lractl0n - warn lotal. « Place. c £h * H h? i i iii' i P. F. P. F. P. F. P. F. P. F. P. F. P. ! F. P. , F. P. F. P. F. S I 1 | J l_ 1 • I _® Auckland 5 3 18 6 1 2 1 9 1 33 13 J 46 Blenheim 2 2 .. 2 Christchurch 5 6 1 1 . . ... 9 .. 9 . . 24 7 31 Dunedin 14 3 6 I 1 1 .. . . 21 4 ! 25 Gisborne 1 .. 6 1 7 1 8 Greymouth 2 5 11 2 3 .. 2 .. 1 19 7 26 Hamilton 3 23 3 1 .. 1 .. 3 28 6 34 Invercargill 1 3 14 5 3 2 2 1 .. .. 20 11 31 Napier 2 1 17 1 1 20 2 22 Nelson .. .. 1 1 .. 7 4 1 3 12 5 17 New Plymouth . . 1 1 .. 13 5 1 2 . . 17 6 23 Palmerston N 1 7 7 7 8 15 Timara 1 1 .. 4 1 .. .. 6 1 7 Wanganui 3 2 .. 1 1 1 .. 5 3 8 Wellington .. .. .. .. 5 4 3 • .. 1 15 2 19 11 30 Whangarei . . . . j . . 1 2 8 1 .. | 3 | 12 3 15 Totals .... i 2 14 23 151 i 49 1 j .. ! 1 .. 23 5 3 .. j 23 I 6 36 3 252 I 88 ,340 j j I I : I | I I |