AgficulUiral Education — Examination Pajyers, 1888. cxxxiii 
B. Agricultural Cuemistry. 
Thursday, May \Oth,from 2 2}-m. to 5 p.m. 
1. Illustrate by examples differences of root-range exhilnted by 
crops, especially with regard to the constituents they are capable of 
taking up from the soil and from manures, and to their place in a 
rotation. 
2. What are possible causes of " clover sickness " t Give brief 
accounts of any investigations bearing on the subject. 
3. Name any special functions which the presence of the fol- 
lowing constituents in soils is held to perform : — Oxide of Iron ; 
Alumina ; Chlorine ; Sulphur ; Magnesia ; Soda ; Silica. 
4. In what form or forms does Sugar exist in Swedes and in 
Mangels, and in what respective quantities on an average? How 
would you determine the amounts analytically ? 
5. Compare oxen, sheep, and pigs in respect of relative increase 
of live weight to food consumed. What are the chief differences of 
composition shown by the excrements in either case ? 
6. Describe the chemical nature and methods of preparation of 
the following : — Creosote ; Malt ; Margarine ; Basic Cinder. 
7. Describe special uses in agriculture of these materials : — 
Seaweed ; Shoddy ; Salicylic Acid ; Boracic Acid ; Shell-sand ; Saw- 
dust ; Gypsum ; Gas Lime ; Liquid Manure ; Peat. 
EXAMINATION IN MENSURATION AND LAND 
SURVEYING. 
Maximum Number op Marks, 100. Pass Number, 50. 
Friday, May \\th,from 2 jy.m. till 5 ^y.ni. 
1. The side B C of a triangle A B C is 12-37 chains long ; 
the perpendicular from A to B C meets B C in N, where B N, N C 
are 8-41 and 3-96 chains in length; the length of A N is 11-08 
chains. Draw the triangle to a scale of 5 chains to an inch ; note 
the lengths of A B and A C and the number of degrees in the 
angles ; and find the area of the triangle in acres, roods, and perclies. 
2. An ingot of steel is 3 ft. long, and has a square cross-section 
whose side is 10 in.; find its weight, having given that the specific 
gravity of steel is 7*8. If the ingot were formed into a rail 30 ft. 
long, what would be the area of the cross-section of the rail ? 
VOL. XXIV. — S. S. Jc 
