44 TRANSACTIONS OF SECTION M. 
The only detail that need be further noted here is the comparison of Bombay 
and Egyptian cotton-cakes. The figures are as follows :— 
sates Egyptian Bombay 
Cotton-cake Cotton-cake 
Total roots consumed 2554 ewt. 2674 cwt. 
Total hay consumed... 818 Ib. 558 Ib. 
Total concentrates consumed 1,697 Ilb.. 1,699 Ib. 
Totalth.W:Hnereass? SP" oui eye ea TA: 760 Ib. 830° Ib. 
Increase per head per week... 2-325 Ib. 2-539 Ib. 
Net cost of food per lb. of L.W.I. 2-849d. 2-473d. 
Albu- Carbo- 
: minoids Oil hydrates Fibre 
The Egyptian cake contained per cent. . 20-93 5-14 32-19 23-86 
The Bombay ,, = rey bes Bar) 5-44 34-99 22:27 
In the results it may be noted that :— 
1. The mixture of wheat, cotton-seed, and decorticated cotton-cake, which 
was compounded to give the same analysis as the linseed-cake, was economically 
a failure. 
2. Better results were obtained with Bombay cotton-cake than with Egyptian 
cotton-cake. 
3. The greatest progress was got always with linseed-cake. 
The Cattle-feeding Experiments. 
The correlated points in the cattle-feeding experiments may now be brought 
forward. 
In 1906 equal quantities of Bombay and Egyptian cotton-cake were fed to 
lots of 8 cattle. 
Albu- Carbo- 
minoids Oil hydrates Fibre 
The Egyptian cake contained per cent. . 22-56 4:9 32-94 21-48 
The Bombay _,, a5 Ae fg oe HEHE 3:42 35-25 22-26 
The total increase from each was the same—being 290°5 lb. per head, or 
2'07 lb, per head per day. The Bombay cake, although a poor sample, was as 
productive as the Egyptian cake. The results thus support my contention that 
the nutrients in Bombay cake are worth more than those in Egyptian cake. 
The 1911-12 cattle-feeding experiment is a much more definite case of non- 
agreement with the theory of starch equivalents. Three lots of 14 bullocks 
of about 1,000 lb. L.W. were fed in all respects alike, except that one got 
4 lb. linseed-cake, another 4 lb. coconut-cake, and the third 43 lb. wheat bran 
per head per day. The common basal ration was 90 lb. swedes, 12 Ib. oat straw, 
and 4 lb. Bombay cotton-cake. The quantities of the foods under trial and the 
results obtained were as follows :— 
Linseed- | Coconut- | B 
‘Miia cake cake pa 
| Total quantity. . . . | 6,2781b. | 6,2781b. | 7,420Ib. 
Starch equivalent per cent. . 72-35 | 79-31 42-76 
Total starch equivalent . 4542 4978 3172 
Total increase (14 cattle). . 3,522 lb. | 3,087 1b. | 3,172 Ib. 
Increase per head per day . 2:27 | 1-91 2-02 
