Ixxviii Agricultural Education — Examination Papers, 1881. 
6. Describe tlie changes whicli take place in the germination of 
barley. Point out the differences in the composition of malt and 
barley-meal. 
7. What is the composition of raw and steamed bones ? How do 
you detect the adulteration of gypsum, chalk, vegetable ivory, and of 
sand in bone-dust ? 
8. Write a short paper on the manufacture of Cheddar cheese. 
9. A farmer has been in the habit of applying 3 cwts. of Peruvian 
guano to his wheat ; the guano contained 10 per cent, of ammonia and 
30 per cent, of phosphate of lime ; he wants to apply to the wheat 
the same amounts of phosphate of lime and ammonia, which are 
contained in 3 cwts. of guano in the shape of some other artificial 
manure. What fertilising matters or mixed artificial manures might 
he use for that purpose, and in what proportion should they be 
used ? 
EXAMINATION IN MECHANICS AND NATUEAL 
PHILOSOPHY. 
MAxrauM NxraiBEB of Marks, 200. Pass Number, 100. 
Thursday, May 12tJi,from 10 a.m. till 1 p.m. 
1. Three forces act in the plane of a rigid triangle at right angles 
to and through the middle points of its sides respectively ; why will 
they balance each other if they all act inwards or all outwards and 
are proportional in magnitude to the sides on which they act ? 
If two of the above forces act inwards and the third outwards, find 
their resultant. 
2. If one end of a rod rests against a smooth plane, in what di- 
rection does the mutual action between the rod and the plane take 
X^lace ? 
A rod is placed with one end on the ground and the other against 
a wall ; show that it would be impossible for it to stand if the ground 
were not rough ? 
3. A yard measure is of the same thickness throughout ; it con- 
sists of three equal pieces jointed together ; if one of the pieces is 
folded back upon the other, so that the whole is now 2 ft. long, where 
is the centre of gravity of the whole '? 
4. The centre of gravity of a wheelbarrow and its load is twice as 
far from the hands of the man who wheels it as from the axle of the 
wheel; if the weight of the whole is 180 lbs., what weight does the 
man support? If the wheel is 17 in. in diameter, what horizontal 
force must the man exert to get it over an obstacle an inch high — 
putting friction out of the question ? 
