460 SECTIONAL TRANSACTIONS.—L, M. 
The enforcement of the Act is not meeting with serious objection, though in 
1923 a disburdening amendment was made by the Farmer-Labour Government to 
appease certain farmers. 
Enforcement, which is gradual, is satisfactory to the extent that school 
attendance departments have been organised and all adolescents fourteen and 
fifteen years of age are in full-time attendance at school or usefully employed. 
Increase in attendance in the elementary schools has been marked, while more 
than 30 per cent. of all ycung persons of the province are actually proceeding 
into the secondary schools. 
Part-time instruction for exempted adolescents is being provided in certain 
cities, and plans are being formed in others where such instruction is necessary. 
SECTION M.—AGRICULTURE. 
(For references to the publication elsewhere of communications entered in the 
following list of transactions, see page 469.) 
Thursday, August 7. 
1, Hon. Jonn S. Martin, Minister of Agriculture for the Province of 
Ontario. 
2. Dr. F. T. Saurr.—he Influence of Cropping on the Nitrogen and 
Organic Matter Content of Western Prairie Soils. 
The author discusses the influence of various crop rotations on the nitrogen 
and organic matter content of western prairie soils as exerted over a period 
of eleven years. Series of plots were set out at three Experimental Stations in 
Western Canada in 1910-11, soil samples collected and analysed, and the plots 
placed under different crop rotations. At the end of eleven years soil samples 
were again taken from the plots at the former points of collection. 
The data—chemical and field—are recorded and inferences drawn as to the 
apparent effect of cropping and cultural treatments on the plant-food content— 
more particularly that of nitrogen and organic matter. 
3. Mr. H. J. Paaz.—wNitrogen Balance in the Soil. 
Recent work at Rothamsted and elsewhere on the nature of the different 
factors concerned in the nitrogen cycle in the soil is described. The interaction 
of these factors is discussed, with special reference to the total nitrogen content 
of the soil of the plots on Broadbalk Field, Rothamsted. The factors respon- 
sible for the immobilisation of the greater part of the nitrogen of the soil 
are discussed, special attention being given in the present paper to the chemical 
and physico-chemical aspects of the subject; the biological aspects will be dis- 
cussed by the author in his contribution to the Joint Discussion with Section D 
on Soil Population. 
Friday, August 8. 
4. Joint Discussion with Section D on Soil Population. 
Speakers: Mr. D. Warp Currier, Dr. N. A. Coss, Dr. A. E. 
Cameron, Mr. H. J. Paas, and others. 
5. President J. B. Reynoups.—Agricultural Education in Canada. 
(a2) THREE Directions ror AGRICULTURAL EDUCATION : 
1. Vocational training for the business of farming. 
2. Education for agriculture and country life. 
3. Education through agriculture for a common citizenship. 
