To Supply Energy at Equal Cost
+-+-++ |When milk is— |Sirloin steak must not be more than—|And eggs not more than—| +-+-++ |7 cents a quart | 9.9 cents a pound | 9.3 cents a dozen| +-+-++ |8 cents a quart | 11.3 cents a pound | 10.6 cents a dozen| +-+-++ |9 cents a quart | 12.8 cents a pound | 11.9 cents a dozen| +-+-++ |10 cents a quart | 14.2 cents a pound | 13.2 cents a dozen| +-+-++ |12 cents a quart | 17.0 cents a pound | 15.9 cents a dozen| +-+-++ |15 cents a quart | 21.3 cents a pound | 19.8 cents a dozen| +-+-++
Fallacy of Theoretical Valuation.—While the contents
of protein and the ratio between digestible protein
and fats and carbohydrates on one hand, and the
fuel or energy value on the other, have long been the
only recognized measures for food values, they are admittedly
quite inadequate and insufficient
and although they are a
great help when used with discrimination
in making up food rations,
they are often abused by persons
who do not take their fallacies into
consideration.
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Dr. E. V. McCollum
"Something Unknown."—Recent
investigations by Dr. F. G. Hopkins,
of Cambridge, England, and Dr. E.
V. McCollum, formerly of Wisconsin,
now of the Johns Hopkins University, have
proven conclusively that one food ingredient cannot
always be substituted for another with impunity even
though the most searching chemical analysis shows
them both alike in contents and digestibility. There is
"Something Unknown" in certain foods—"Vitamines"
some call it—essential especially in promoting the
