48 



Journal of Agricultural Research 



Vol. XIII. No. I 



the ordinary statistical methods have been applied to the data of Table 

 III, with the results recorded in Table IV. In considering the significance 

 of these results it should be borne in mind that the experiments were 

 upon ID different animals and that in most instances those upon the 

 same animal were made in different years. How far the factors of 

 individuality and age thus introduced may affect the significance of the 

 statistical calculations is a matter for future investigation. The results 

 are recorded here for what they are worth. 



Table III. — Computed 24-hours basal katabolism of cattle per square meter of body 



surface 



Feeding stuffs. 



Timothy hay 



Red clover hay 



Do 



Do 



Timothy hay 



Do 



Do 



Do 



Do 



Do 



Alfalfa hay 



Do 



Alfalfa hay and mixed grain 



Alfalfa hay 



Alfalfa hay and mixed grain 



Alfalfa hay 



Alfalfa hay and mixed grain 



Maize stover 



Mixed hay 



Mixed hay and hominy feed 



Mixed hay 



Mixed hay and maize meal . 



Alfalfa hay 



Alfalfa meal 



Alfalfa hay 



Alfalfa hay and starch 



Alfalfa hay and mixed grain 



Do 



Ex- 

 peri- 

 ment 

 No. 



174 

 179 

 186 

 186 

 190 

 190 

 200 

 200 

 207 

 207 

 208 

 208 

 208 

 208 

 208 

 209 

 209 

 210 

 211 

 211 

 211 

 211 

 212 

 212 

 216 

 216 

 217 

 217 



Ani- 

 mal 



No. 



Periods 

 com- 

 pared. 



D-A 



1-2 

 2a-ia 

 2b-3b 

 4-3 

 4-3 

 4-3 

 4-3 

 4-3 

 4-3 

 1-2 



4-6 



1-3 

 4-6 

 2-3 

 4-6 

 1-3 

 1-3 

 1-5 

 3-2 

 1-5 

 3-2 

 i-S 

 2-6 



5-7 

 1-4 

 2-1 

 3-4 



Com- 

 puted 

 body 

 surface. 



Square 

 meters. 

 4. 706 

 5-578 



5-875 



5-825 



3-693 



2.949 



4. 690 



3-925 



437 



516 



707 



129 



067 



463 



340 



952 



832 



147 

 934 

 028 

 4.498 

 4.498 

 4.236 

 4. 208 



4-589 

 4-458 

 5-452 

 5-506 



Basal katabolism per 

 square meter of body 

 surface. 



Lying 

 24 hours. 



Col. 



1,304 



1,074 



1,278 



1,401 



802 



671 



I, 150 



1,056 



826 



i>i57 



905 



727 



960 



779 

 961 



909 



I, 048 



879 



1,038 



855 



I, 006 



I, 018 



862 



605 



840 



1,023 



895 

 1,176 



Stand- 

 ing 12 

 hours. 



Cal. 

 1,472 

 I, 166 

 1,412 

 1,515 

 I. 136 

 I, 168 

 I, 246 

 1,228 

 939 

 1,195 

 933 

 916 

 I, 221 

 1,085 

 1,308 

 I, 046 

 I, 282 

 I, 144 

 1,338 

 1,178 



1,293 

 I, 211 

 I, 124 

 788 

 1,117 

 I, 200 

 I, 020 

 1,370 



Stand- 

 ing 24 

 hours. 



Cal. 



I, 640 



1,256 



1,547 



1,631 



1,446 



I, 182 



1,338 



1,407 



1,047 



1,314 

 961 

 I, 106 

 1,479 

 1,398 

 1,656 

 I, 184 

 I, 516 

 1,405 

 1,635 

 1,498 

 1,578 

 1,423 

 1,310 

 984 

 1,382 



1,381 

 I, 149 



1,565 



Table IV. — Basal katabolism, of cattle per square meter of body surface 



Mean Calories 



Probable error of mean do . . 



Probable error of single result . do . . 



Standard deviation do . . 



Coefficient of variability 



Lying 24 hours. Standing 12 hours. Standing 24 hours, 



964 



±24.0 



±124. 8 

 185. i±i7. c 

 o. 1920 



1,173 

 ± 21.4 

 ±110.9 



164. 5 ±15- I 

 o. 1462 



1,365 

 ± 25-7 

 ±133-6 

 198. o±i8. 2 

 o. 1451 



