cl Agricultural Education — Examination. Papers, 1879. 
known that their actual distance from each other is 45 yards ; what i& 
the length 'of a line on the plan representing a line whose actual 
length is 200 yards? Draw the line and divide it so as to form a 
scale adapted for reading distances on the plan from 5 yards up to 
200 yards. 
6. Explain briefly the principle of the vernier. If the arc of the 
instrument is divided to read to half-degrees ; how must the vernier 
be divided to read to half-minutes ? 
7. Two sides of a triangle are 753 feet, and 
492 feet long, and contain an angle of 10S° 30' ; 
(1) draw the triangle to scale, and note the length 
of the third side ; (2) calculate trigonometrically 
the length of the third side. 
8. In the last question, find the area of the 
triangle ; (1) by means of a trigonometrical cal- 
culation; (2) by means of measurements made 
on the drawing. 
9. To find the area of a narrow piece of 
ground, a line (AB) is chained down the middle 
of it, and off-sets are taken to the right and left, 
according to the accompanying notes ; draw the 
boundaries, and calculate the area between them 
and the extreme oflf-sets. 
EXAMINATION IN GEOLOGY. 
Maxutcm Numbeb of Marks, 100. Pass Numbeb, 50. 
Saturday, April 12th, from 10 a.m. till 1 p.n*. 
1. Explain clearly the principles upon which the stratified rocks 
have been classified into great groujjs. Give the names assigned ^to 
them. 
2. Name the various subaerial agents of denudation, and briefly 
describe the effects produced by any one of them. 
3. Tabulate to descending order the divisions of the Oolitic rocks ; 
mention their lithological characters, and the nature of the soils 
derived from them. 
4. Mention some of tlie characteristic fossils of the Palaeozoic 
period, and give their zoological position. 
5. Enumerate the British strata in which phosphatic deposits of 
commercial value are found. Explain tlic nature and probable origin 
cif the phosphatic matter. 
6. Define what is meant by the terms " mechanically," " chemi-r 
cally," and "organically " formed rocks. Give examples of them. 
