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RETURNS, No. 1. («.) Eetubn showing the Numbbh of Land Boilers and Machinery for which Certificates were issued during the Financial Year ended 31st March, 1907. Boilers— Stationary-Five-horse power and under, 1,390; 10-horse power and over 5-horse power, 822; over 10-horse power, 1,507 : total, 3,719. Portable— Five-horse power and under, 148; 10-horse power and over 5-horse power, 1,145 ; over 10-horse power, 367 : total, 1,660. Total boilers, 5,379. Machinery-— Hydraulic lifts, 178 ; gas-lifts, 17 ; electric lifts, 76 ; steam-lifts, 25 ; water-lifts, 1; gas and hydraulic hoists and electric motors, 320 ; water engines, motors, and water-wheels, 407; Peltons, 89 ; turbines, 87 ; gas-engines, 861; oil-engines, 573 ; steam machinery, 763 : total machinery, 3,397. Grand total, 8,776. (b.) Return showing the Fees payable for the Inspection of Boileks and Machinery, and for the Issue of Engine-drivebs' Certificates during the Financial Year ended the 31st March, 1907. Fees payable—On boilers, £6,338; on machinery, £369 2s. 6d. : for engine-drivers' certificates issued, £494 10s. : total, £7,201 12s. 6d. Government boilers and lifts inspected, but not charged, represent the further sum of £123 7s. 6d. The cash actually received for boilers and machinery and paid into the Public Account amounted to £6,802 14s. 10d. The difference is caused by boiler-owners paying late fees. The cash actually received and paid into the Public Account for engine-drivers' application fees amounted to £651 2s. 6d. for the financial year ended the 31st March, 1907. This amount includes fees for certificates not yet issued. (c.) Eeturn showing the Number of Service and Competency Certificates issued to Winding and Traction and Locomotive Engine Drivers and to Steam Stationary-engine Drivers, during the Financial Year ended the 31st March, 1907. Steam winding: Service 2, fees 10s. ; competency 20, fees £10 : total fees £10 10s. Traction and locomotive : Competency 178, fees £89; total fees, £89. Steam stationary : Service—First-class 6, fees £1 10s. Competency—Extra first-class 8, fees £8; first-class 200, fees £200 ; second-class 371, fees £185 10s. : total fees, £395. Summary of certificates issued : Service—Winding, 2 ; stationary, 6 : total 8, fees (service), £2. Competency —Winding, 20 ; traction and locomotive, 178; stationary, 579 ; fees, £492 10s. Total: Winding certificates, 22 ; fees, £10 10s. Traction and locomotive certificates, 178 ; fees, £89. Stationary certificates, 579 ; fees, £395. Total certificates, 785 ; total fees, £494 10s.

No. 2.—Return of Defects found on Inspection of Boilers during the Financial Year ended the 31st March, 1907.

Description of Defects. Dangerous. L^Degree j r __ A number of rivets in shell bad ... ... ... ... 27 A number of screwed stays in firebox wasted ... 4 60 A number of screwed stays in firebox broken ... 1 All screwed stays in firebox bad ... ... ... 6 Back end of furnace wasted ... .., ... | ... 1 Back tube-plates bulged ... ... ... ... ... 1 Back tube-plate cracked ... ... ... ... ... 1 Badly pitted inside shell ... ... ... ... ... 9 Boilers dirty inside ... ... ... ... 3 97 Bottom of firebox thin ... ... ... ... ... 1 Bottom of shell grooved inside at circumferential seams | ... 1 Bottom of shell thin ... ... ... ... 5 Brickwork setting defective .... ... ... .'.. 35 Bulged under bottom of shell ... ... ... 2 15 Circumferential seams wasted ... ... ... ... 4 Compensating-rings round manhole-doors wasted ... j ... 3 Corroded internally ... ... ... ... \ ... 17 Total. '27 64 1 6 1 1 1 9 100 1 1 7 35 17 4 ' 3 17