ON TEACHING CHEMISTRY. 269 
Group II. 
(1) Mathematics (elementary). | (2) Mathematics (additional). 
Group ITI. 
(1) Scripture Knowledge. (3) History. 
(2) English. 
Group IV. 
(1) Natural Philosophy (Mechanical Division). 
(2) Natural Philosophy (Physical Division). 
(3) Natural Philosophy (Chemical Division). 
(4) Botany. 
(5) Physical Geography and Elementary Geology. 
(6) Biology. 
Every candidate shall be required to satisfy the Examiners in at least four 
subjects. These subjects shall be taken from not less than three different groups, 
except in the following cases :— 
(a) Candidates who satisfy the Examiners in one subject taken from Group II 
or Group IV. Such candidates may offer three subjects taken from Group I. 
(6) Candidates who have already obtained a Certificate. Such candidates may 
offer four subjects taken from not less than two different groups. 
No candidate shall be allowed to offer more than six subjects, Elementary and 
Additional Mathematics being reckoned for the purposes of this clause as one 
subject. 
iartificatés shall also be awarded to candidates from schools who satisfy the 
Examiners in two subjects taken from Group I, in one subject taken from 
Group II or LV, and in such portions of two or more of the subjects included in 
Group III as may be accepted by the Board as fully equivalent in amount and 
difficulty to any one of the three subjects included in the group. 
The Examination in the Physical Division of Natural Philosophy shall 
include— 
(a) Elementary Electricity and Magnetism: viz., phenomena of electric excite- 
ment; opposite electrical states ; conductors and insulators; electromotive force 
and potential ; phenomena of current (or discharge) in conductors and in air; laws 
of static induction, and the accumulation of electricity; simple phenomena of 
magnetism and of magnetic induction and terrestrial magnetism; electromagnets ; 
influence of the electric current on a magnetic needle; sine and tangent galvano- 
meters; laws of resistance ; Ohm’s law ; laws of divided currents; laws of electro- 
lysis ; the application of the foregoing principles and laws to simple problems and 
to instruments, including the electric instruments in common use. 
(6) The experimental laws of Heat in relation to expansion, liquefaction, and 
vaporisation ; the more important properties of vapours and gases; specific heat ; 
latent heat; the transmission of heat; the absorption and reflection of radiant heat ; 
the production of heat; the mechanical equivalent of heat; thermometry and 
calorimetry. 
(c) Elementary Optics: viz., the phenomena and laws of the transmission, re- 
flection, and refraction of light ; the formation of images; the action of prisms and 
simple lenses ; vision ; the principles and optical construction of telescopes, micro- 
Scopes, and other simple instruments. 
(d) The elementary parts of Inorganic Chemistry, including the simple com- 
binations of the principal elements, and the laws of chemical combination; atmo- 
spheric air and the phenomena of combustion. 
Candidates who offer the Physical Division of Natural Philosophy shall be 
required to satisfy the Examiners in (a) and at least two of the three (4), (c), (d). 
The knowledge expected from the Candidates shall be such as may be acquired 
from an experimental treatment of the subjects. 
: ‘ie Examination in the Chemical Division of Natural Philosophy shall 
include— 
