Education Committee. — Examination Papers, 18G8. Ixxiii 
No. 4. A wagou is laden with hops, the width of the wheels to tlio 
outside of the tires is 5 feet, the load has sliiftcd aud the centre of 
gravity is found in a line at 2 feet within the outside of the near side 
Avliecls, and at a height of 9 feet above the ground. 
Kcquired the diflerenco in level of a road or of a hill-side wlien the 
whole would bo in equilibrium and just on the point of upsetting. 
No. 5. The druna of a threshing machine makes 1000 revolutions 
per minute, its diameter is 22 inches, aud the weight of one of its 
beaters is 174- lbs. 
Eequired the force in lbs. necessary to hold the beater in its posi- 
tion on the drum. 
No, 6. There is a "draw-well," fitted with a windlass, rope, and 
bucket, the depth of the well to the water is 100 feet, the bucket 
filled with water weighs 110 lbs. ; the rope is elastic, and it will 
stretch 10 foot before the tension will lift the bucket. 
Required the units of work to be done in raising the bucket 
through the space of 100 feet, exclusive of friction and the weight of 
the rope. 
N.B. — The imit equals 1 lb. weight, raised one foot high. 
No. 7. A fir pole is 65 feet long, rests upon a support at each end; 
its diameter at one end is 9 inches, at the other 6 inches ; its specific 
gravity is '052. 
EeqHired the weight in lbs. upon each of the supports, also the 
distance of the centre of gravity from either end of the pole. 
No. 8. There is a stream of water passing through a farm with a 
fall of 6 feet ; it is desirable to apply the power and to obtain a force 
-of 330,000 units of work per minute. 
(1) What, in yom* opinion, would be the best description of v/heel 
to employ ? 
(2) What should be the diameter, the width, and the velocity of 
the wheel at the periphery '? 
(3) What should be the depth of the float-boards or buckets ? 
QUESTIONS IN BOTANY. 
Time allowed for answering these Questions, 2 p.m. fo 4. p.ii. 
No. 1. Distinguish between a parasite and an epiphyte ; aud men- 
tion the parasitical flowering plants which are injurious to our 
growing crops, giving the name of each parasite with the plant it 
■commonly attacks. 
No. 2. Define a root, stem, tuber, corm, bulb and rhizome. 
No. 3. Mention the natural order to which the common coltsfoot 
and dandelion belong, and describe aud contrast their respective 
flower-heads. 
