522 Sheep-Feeding Experiments at Crawley JSIill Farm, 
According to these figures the albuminoid ratios of the two 
sets of food were : — 
Pen I. — (Linseed-caie) 1 : 5 "55 
Pen III.— <Wheat) 1 : 6-68 
It will be obvious that in considering the relative advantages 
of different artificial foods, it is not sufficient to take merely the 
increase in live-weight obtained by the use of any one, or a 
combination of several, but the relative cost must also be an 
item for consideration. I have endeavoured to meet this in the 
present case. The cost of the additional food, taking the then 
market prices as already given, was as follows : — 
Pen I. (8 Sheep). 
Linseed-cake : — 
33 days at \ lb. each 132 lbs. 
76 days at i lb. each 45G lbs. 
588 lbs. Cost, £2 7s. 3c?. 
Pen II. (8 Sheep). 
£ S. d. 
294 lbs. LiBseed-cake cost 1 3 7^ 
294 lbs. Undecorticated Cotton-cake .. .. „ 14 8 
£1 18 3J 
Pen III. 
£ s. d. 
558 lbs. Wheat cost 1 14 11 
Pen IV. 
s. d. 
294 lbs. Crushed Oats cost 18 92 
294 lbs. Barley-meal „ 18 8| 
£1 17 6i 
Pen Y. 
£ t. d. 
294 IbF. Crushed Oats cost 18 9f 
294 lbs. Split Beans „ 1 6 
£2 5 4:i 
Hence the cost per lb. of increase was : — 
Pen I.- — Linseed-cakc 1'39«?. 
Pen II. — Linseed-cake and Undec. Cotton-cake .. I'SSd, 
Pen nr.— Wheat 1-OOd. 
Pen IV.— Oats and Barley l-'Sdd. 
Pen V. — Oats and Split Beans l'(j(jd. 
From this last calculation it appears that wheat, regarded only 
as a feeding material, is the cheapest ; linseed-cake, linseed-cake 
and cotton-cake mixed, and oats and barley mixed, being equal ; 
whilst the mixture of oats and beans is the dearest. Also that 
