World Resources 
ought to realize is that to get this food will mean spending 
money on perhaps one-tenth of the scale needed to get to the 
moon, and if we got our priorities right and spent money in this 
way it would involve a major agricultural and scientific revolu- 
tion. 
Brock has mentioned “‘Incaparina’’, the protein of which is 
based mainly on cottonseed. Emphasis ought to be put on 
groundnut residue, soya residue and coconut residue, all of 
which added together would supply about one-third of the 
world’s present protein needs, if they could be introduced into 
human feeding. Apart from this work by Scrimshaw, some 
research going on in Mysore and elsewhere on the groundnut, 
and the traditional Japanese techniques with soya, this possibi- 
lity has been grossly neglected. 
In the figures which Clark quoted for high yield, he mentioned 
corncockle and water hyacinth. The troublesome thing about 
these high yields is that they so often occur in crops for which 
nobody has any immediate use. Suppose you harvested this 
vast amount of corncockle, what are you going to do with it? 
One thing might be to give them to me to see whether I can 
produce an edible and palatable product from them. Leaf 
protein, unlike the vegetable proteins which Professor Brock 
and Norman Wright tended to lump together, is not strictly 
comparable with the storage protein of seed. It has an amino 
acid composition much more like that of an animal and this is 
reasonable because it is a mixture of about 1,000 different 
enzymes; it is a metabolic functional part of the plant, like liver. 
A priori one would expect it to be, for statistical reasons, a good 
protein. The results we have obtained so far, and they are borne 
out on pigs, suggest that it is as good as fish meal. Baby-feeding 
experiments show that a diet of 50 per cent milk and 50 per 
cent leaf protein is almost as good as milk alone. I would not 
claim that leaf protein is as good as milk or should be used on 
its own, but as a method of stretching an inadequate animal 
protein supply I think it has great potentialities. 
I must say that Clark is entirely wrong if he thinks that 
by supplying the world’s needs for food all arguments about 
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