10G Home Produce , Imports, Consumption , and 
respectively ; and the fifth and six columns the total amounts 
available per head from home and foreign sources together, also 
respectively, according to the old and the new calculations ; and 
the last column shows the increase in the available total supply 
per head per annum, according to the new as compared with the 
old calculations. 
In the first place it is to be observed, that the estimates of 
the average amounts available per head over the different 
periods from home produce, are, of course, in no way affected by 
the alteration in the calculation of the imports. It is seen, 
however, comparing the third and fourth columns, that there is, 
over each period, a slight increase in the estimated amount of 
the supplies from foreign sources, due to the alteration in the 
calculation of the amount of wheat corresponding to the imports 
of flour. There is necessarily the same amount of increase 
shown on comparing the fifth and six columns, which repre- 
sent the total quantities annually available per head over each 
period, according to the old and the new calculation respectively. 
The actual amount of increase indicated as due to the new 
mode of estimate is shown in the last column. It is seen to 
be small over the first, second, and third periods, but greater 
over the fourth, and greater still over the fifth, amounting then 
to 0T2 bushel per head per annum. 
On this point it may be observed, that the annually adopted 
estimates for the last eight-yearly period show an average 
annual requirement of 5'65 bushels, whilst the amount calcu- 
lated from the available supplies of home and foreign wheat, 
and the population, show, for the same period, according to the 
old calculation, 5'GG, and according to the new 5 - 78 bushels 
per head. It may be of interest to state, however, that an 
increase in the consumption of 0T2 bushel per head on a popu- 
lation of about 37 millions, which was approximately the average 
for the period, represents an increase in the annual requirement 
of about 564,000 quarters on the previously estimated amount 
of nearly 26,500,000 quarters. 
It will be obvious that the change in the estimates of the 
total amount of wheat annually available for consumption, and 
of the annual consumption per head accordingly, in no way 
vitiates the significance of the accordance of the estimates of 
consumption and of requirement hitherto annually made, with 
the amounts subsequently recorded as available. But it will be 
equally obvious that it implies a real change, not only in the 
figures previously adopted, but in the actual quantities they 
represent on the two points. It is to be borne in mind that in 
all the foregoing summary Tables, the old reckoning of 61 lb. 
