2720
THE NEW ZEALAND GAZETTE.
[No. 93

and explosives; boring (some one form
each of hand, placer, and diamond
drills to be described).

Subject II, Mechanics.—Pumping
appliances and mine-drainage; tapping
water and dam-construction in mines;
winding in shafts; hauling on under-
ground planes; compressed-air and
steam-power plants; strength of ma-
terials; elementary electricity (to in-
clude knowledge of fundamental prin-
ciples, definition and application of
electrical units and terms, advantages
and disadvantages of direct and alter-
nating current-generators and motors,
principle of a rotary transformer,
principles of insulation, advantages
and disadvantages of electrical wind-
ing-engines). (A knowledge of wiring
and other details of electrical ma-
chinery is not required.)

Subject III, Ventilation.—Ventila-
tion of mines and knowledge of mine
gases; rescue apparatus used in mines;
methods of dealing with underground
fires.

Subject IV, Arithmetic and Law.—
A knowledge of mine accounts, frac-
tions, decimals, percentages, square
root, area of rectangle, triangle, trape-
zoid, circle, &c.; volume of cube,
sphere, prism, pyramid, prismoid, &c.;
measurement of timber; estimation of
ore in mines and at grass; a know-
ledge of Parts V and VI of the Mining
Act and regulations. (Written ques-
tions will be set, and there will be no
oral examination.)

Subject V, Surveying.—A knowledge
of surveying and levelling, both under-
ground and at the surface; also of mine
plans and sections.

Subject VI, General and Applied
Geology.—Prospecting; classification
and mode of occurrence of mineral de-
posits; faulting and recovery of lost
lodes. General geology so far as re-
quired for the understanding of pro-
blems in applied geology as these
present themselves in New Zealand.

Each candidate shall forward with
his application a certificate from a duly
qualified medical practitioner or St.
John’s or other recognized ambulance
society showing that he has taken a
course in ambulance work fitting him,
the said candidate, to give first aid to
men injured in mining operations.

(7.) A candidate for a first-class certificate
shall be entitled thereto if he passes
satisfactorily in Subjects I to VI.

(8.) A candidate for a second-class certificate
shall be entitled thereto if he passes
satisfactorily in Subjects I, III, and

IV, and he shall not be required to pass
in Subjects II, V, and VI.

(9.) If the candidate is the holder of a second-
class certificate he shall state the fact
in his application.

(10.) The subjects of examination for certifi-
cates as battery superintendents shall
be as follows:—

Subject I, Milling.—Elevators, hop-
pers, conveyors, rock-breakers, pul-
verizers wet and dry, including
stamps, rolls, Chilian mills, ball mills,
grinding-pans, tube mills; disposal
of residues; erection of plants.

Subject II, Amalgamation.—Scope
of ore-amalgamation; amalgamating-
plates, amalgamating-machines, puri-
fication of mercury, retorting amal-
gam, smelting, &c.

Subject III, Cyanide, Chlorination,
and other Chemical Processes.—Condi-
tions for choice of method of treatment,
&c.; dewatering; treatment of sands;
concentrates and slimes; mixing, test-
ing, and control of solutions; clean-
up; principles of roasting as applied
to gold and silver ores and concen-
trates.

Subject IV, Sizing and Concentra-
tion.—General principles; classifiers;
concentrating-machines, including jigs,
belt-vanners, shaking-tables, canvas
tables, buddles, blankets, &c.; prin-
ciples of magnetic separation and of
flotation processes.

Subject V, Assaying and Elementary
Chemistry.—Sampling of ores and
mill-products; qualitative tests for the
common metals and inorganic acids;
separation of the common metals;
qualitative analyses of ores and mill-
products; dry assay of gold and silver
in ores and mill-products; assay of
bullion; sources of loss in fire-assay-
ing; a knowledge of the fluxes and
reagents used.

Subject VI, Arithmetic and Law.—
A knowledge of store, milling, and
treatment accounts; fractions, deci-
mals, percentages, square root; area of
rectangle, triangle, trapezoid, circle,
&c.; volume of cube, sphere, prism,
pyramid, prismoid, &c.; measurement
of timber; estimation of ore in mines
and at grass; a knowledge of Part VI
of the Mining Act.

(11.) Every applicant must be able to give
drawings to illustrate details connected
with any work to be done in or about
a gold-mine, and must give all details
of calculations, and in matters of
opinion must fully state his reasons for
arriving at any given conclusion.