29 



B. Where the basis of grouping is quantitative (as crop area, 

 number of animal units, etc.) and not qualitative (as types of 

 tenure, type of farming, etc.), the average of each group (and sub- 

 group if any) for the basis of grouping should be given. Thus, if 

 the farms are divided into groups based on number of animal units 

 per 100 acres of crop, the average number of animal units per 100 

 acres of crops in each group should be given. 



C. A summary of all the columns or lines, as the case may be 

 (both columns and lines if each group is divided into subgroups). 



In dividing farms into groups on the basis of a quantitative 

 factor, as crop area, percentage of income from poultry, etc., where 

 possible make the size limits of the various groups such as to give 

 a sufficient number of farms in each group to give a reliable average, 

 at least in most of the groups (all groups if practicable to do so). 



When the farms have been sorted on any factor, the calculations 

 should be made for all the tables requiring this same sorting. The 

 various groupings to be made, with the numbers of the tabulations 

 (see pp. 30 to 40) required in each, are as follows: 



1. Tabulations requiring no sorting into groups: V, 1 XIII, 1 

 XXXI, LXXI, LXXIII, LXXIV, LXXV. 



2. Types of tenure: I, III, IV, VI, VII, XIV, XX, XXI, XXIII, 

 XXIV, LXI, LXVII, LXIX. 



3. Size of farm: II. 



4. Crop area equivalent: VIII, IX, XV, XXII, XXV, XXVI, 

 XXXVI, XXXVII, XXXVIII, XXXIX, XL, XLI, XLII, 

 XLV, XLVI, XLVII, XLVIII, XLIX, LVI, LXII, LXVIII. 



5. Types of farming: X, XI, XVII, XVIII, XXXII, XXXIV, 

 L, LI, LII, LIII, LXVI, LXX. 



6. Percentage of crop area devoted to each crop: XII, XXVII. 



7. Percentage of animal units of each kind: XIX. 



8. Percentage of receipts from each source: XXVIII. 



9. Types of dairying exclusive: XXIX. 



10. Types of dairying inclusive: XXX. 



11. Crop acres per animal unit: XXXIII. 



1 Tabulations V and XIII may be made by summarizing the results of other 

 tabulations, as noted later. 



