APRIL 17. THE NEW ZEALAND GAZETTE. 869

Offices opened and closed; Designation changed.

Post and Telegraph Department,
General Post Office, Wellington, 9th April, 1902.

J. G. WARD,
Postmaster-General and Electric Telegraph Commissioner.

THE following particulars of offices opened and closed, and of a designation changed, are published for general information.

DESIGNATION CHANGED.

Bonus for Treatment of Auriferous Black Sand.

Mines Department,
Wellington, N.Z., 14th November, 1901.

NOTICE is hereby given that a bonus of £2,000 will be paid to any person who, before the 1st January, 1904, shall invent such appliances as will successfully save gold from black sands in New Zealand.

The bonus will be paid on compliance with the following conditions:—

1. The invention shall, in its main features, differ from all machinery and appliances at present in use for the saving of gold, whether coarse or fine.

2. It shall be readily transportable from place to place, and shall be capable of utilising local water for all its requirements.

3. The invention must be capable of treating not less than 30 cubic yards an hour of black sand or any coarser material up to a diameter of 4 in.; and it must be capable of treating such material profitably where there is not more than a value, in gold, of 3d. per cubic yard; not less than 80 per cent. of the gold contained in the material to be recovered by the machine.

4. No bonus to be paid until the invention has been continuously worked for not less than six months, and it shall, during that period, have treated not less than 100,000 cubic yards of material, working three shifts a day.

5. The bonus will be paid on the certificate of an officer that not less than twenty persons other than the applicant for the bonus are successfully working the invention.

6. Any person who receives the bonus shall not be allowed to take out patent rights in New Zealand for his invention.

JAMES McGOWAN,
Minister of Mines.

Bonus for the Production of Quicksilver.

Mines Office,
Wellington, 7th June, 1900.

NOTICE is hereby given that a bonus of fourpence (4d.) per pound will be paid on the production of the first one hundred thousand pounds weight (100,000 lb.) of good marketable retorted quicksilver, free from all impurities, from any mine in New Zealand, on the following conditions, that is to say:—

1. That at least one-third of the quantity is produced on or before the 31st March, 1903, and the remaining two-thirds on or before the 31st March, 1904.

2. No bonus will be payable until the whole of the one hundred thousand pounds (100,000 lb.) of quicksilver has been produced as stipulated to the satisfaction of an officer to be appointed by the Minister of Mines, and on whose certificate alone the bonus will be paid.

3. In the event of more than one person producing the required quantities of quicksilver before the dates named, inquiry will be made by the officer above referred to, when, if it is found that each applicant is equally entitled to a bonus, the amount will be divided in proportion to the quantities produced by each applicant, but in no case shall any bonus be paid until at least one hundred thousand pounds (100,000 lb.) of quicksilver has been produced in the aggregate.

JAMES McGOWAN,
Minister of Mines.